tailwind-merge
Version:
Merge Tailwind CSS classes without style conflicts
1,475 lines (1,468 loc) • 106 kB
JavaScript
'use strict';
Object.defineProperty(exports, Symbol.toStringTag, {
value: 'Module'
});
/**
* Concatenates two arrays faster than the array spread operator.
*/
const concatArrays = (array1, array2) => {
// Pre-allocate for better V8 optimization
const combinedArray = new Array(array1.length + array2.length);
for (let i = 0; i < array1.length; i++) {
combinedArray[i] = array1[i];
}
for (let i = 0; i < array2.length; i++) {
combinedArray[array1.length + i] = array2[i];
}
return combinedArray;
};
// Factory function ensures consistent object shapes
const createClassValidatorObject = (classGroupId, validator) => ({
classGroupId,
validator
});
// Factory ensures consistent ClassPartObject shape
const createClassPartObject = (nextPart = new Map(), validators = null, classGroupId) => ({
nextPart,
validators,
classGroupId
});
const CLASS_PART_SEPARATOR = '-';
const EMPTY_CONFLICTS = [];
// I use two dots here because one dot is used as prefix for class groups in plugins
const ARBITRARY_PROPERTY_PREFIX = 'arbitrary..';
const createClassGroupUtils = config => {
const classMap = createClassMap(config);
const {
conflictingClassGroups,
conflictingClassGroupModifiers
} = config;
const getClassGroupId = className => {
if (className.startsWith('[') && className.endsWith(']')) {
return getGroupIdForArbitraryProperty(className);
}
const classParts = className.split(CLASS_PART_SEPARATOR);
// Classes like `-inset-1` produce an empty string as first classPart. We assume that classes for negative values are used correctly and skip it.
const startIndex = classParts[0] === '' && classParts.length > 1 ? 1 : 0;
return getGroupRecursive(classParts, startIndex, classMap);
};
const getConflictingClassGroupIds = (classGroupId, hasPostfixModifier) => {
if (hasPostfixModifier) {
const modifierConflicts = conflictingClassGroupModifiers[classGroupId];
const baseConflicts = conflictingClassGroups[classGroupId];
if (modifierConflicts) {
if (baseConflicts) {
// Merge base conflicts with modifier conflicts
return concatArrays(baseConflicts, modifierConflicts);
}
// Only modifier conflicts
return modifierConflicts;
}
// Fall back to without postfix if no modifier conflicts
return baseConflicts || EMPTY_CONFLICTS;
}
return conflictingClassGroups[classGroupId] || EMPTY_CONFLICTS;
};
return {
getClassGroupId,
getConflictingClassGroupIds
};
};
const getGroupRecursive = (classParts, startIndex, classPartObject) => {
const classPathsLength = classParts.length - startIndex;
if (classPathsLength === 0) {
return classPartObject.classGroupId;
}
const currentClassPart = classParts[startIndex];
const nextClassPartObject = classPartObject.nextPart.get(currentClassPart);
if (nextClassPartObject) {
const result = getGroupRecursive(classParts, startIndex + 1, nextClassPartObject);
if (result) return result;
}
const validators = classPartObject.validators;
if (validators === null) {
return undefined;
}
// Build classRest string efficiently by joining from startIndex onwards
const classRest = startIndex === 0 ? classParts.join(CLASS_PART_SEPARATOR) : classParts.slice(startIndex).join(CLASS_PART_SEPARATOR);
const validatorsLength = validators.length;
for (let i = 0; i < validatorsLength; i++) {
const validatorObj = validators[i];
if (validatorObj.validator(classRest)) {
return validatorObj.classGroupId;
}
}
return undefined;
};
/**
* Get the class group ID for an arbitrary property.
*
* @param className - The class name to get the group ID for. Is expected to be string starting with `[` and ending with `]`.
*/
const getGroupIdForArbitraryProperty = className => className.slice(1, -1).indexOf(':') === -1 ? undefined : (() => {
const content = className.slice(1, -1);
const colonIndex = content.indexOf(':');
const property = content.slice(0, colonIndex);
return property ? ARBITRARY_PROPERTY_PREFIX + property : undefined;
})();
/**
* Exported for testing only
*/
const createClassMap = config => {
const {
theme,
classGroups
} = config;
return processClassGroups(classGroups, theme);
};
// Split into separate functions to maintain monomorphic call sites
const processClassGroups = (classGroups, theme) => {
const classMap = createClassPartObject();
for (const classGroupId in classGroups) {
const group = classGroups[classGroupId];
processClassesRecursively(group, classMap, classGroupId, theme);
}
return classMap;
};
const processClassesRecursively = (classGroup, classPartObject, classGroupId, theme) => {
const len = classGroup.length;
for (let i = 0; i < len; i++) {
const classDefinition = classGroup[i];
processClassDefinition(classDefinition, classPartObject, classGroupId, theme);
}
};
// Split into separate functions for each type to maintain monomorphic call sites
const processClassDefinition = (classDefinition, classPartObject, classGroupId, theme) => {
if (typeof classDefinition === 'string') {
processStringDefinition(classDefinition, classPartObject, classGroupId);
return;
}
if (typeof classDefinition === 'function') {
processFunctionDefinition(classDefinition, classPartObject, classGroupId, theme);
return;
}
processObjectDefinition(classDefinition, classPartObject, classGroupId, theme);
};
const processStringDefinition = (classDefinition, classPartObject, classGroupId) => {
const classPartObjectToEdit = classDefinition === '' ? classPartObject : getPart(classPartObject, classDefinition);
classPartObjectToEdit.classGroupId = classGroupId;
};
const processFunctionDefinition = (classDefinition, classPartObject, classGroupId, theme) => {
if (isThemeGetter(classDefinition)) {
processClassesRecursively(classDefinition(theme), classPartObject, classGroupId, theme);
return;
}
if (classPartObject.validators === null) {
classPartObject.validators = [];
}
classPartObject.validators.push(createClassValidatorObject(classGroupId, classDefinition));
};
const processObjectDefinition = (classDefinition, classPartObject, classGroupId, theme) => {
const entries = Object.entries(classDefinition);
const len = entries.length;
for (let i = 0; i < len; i++) {
const [key, value] = entries[i];
processClassesRecursively(value, getPart(classPartObject, key), classGroupId, theme);
}
};
const getPart = (classPartObject, path) => {
let current = classPartObject;
const parts = path.split(CLASS_PART_SEPARATOR);
const len = parts.length;
for (let i = 0; i < len; i++) {
const part = parts[i];
let next = current.nextPart.get(part);
if (!next) {
next = createClassPartObject();
current.nextPart.set(part, next);
}
current = next;
}
return current;
};
// Type guard maintains monomorphic check
const isThemeGetter = func => 'isThemeGetter' in func && func.isThemeGetter === true;
// LRU cache implementation using plain objects for simplicity
const createLruCache = maxCacheSize => {
if (maxCacheSize < 1) {
return {
get: () => undefined,
set: () => {}
};
}
let cacheSize = 0;
let cache = Object.create(null);
let previousCache = Object.create(null);
const update = (key, value) => {
cache[key] = value;
cacheSize++;
if (cacheSize > maxCacheSize) {
cacheSize = 0;
previousCache = cache;
cache = Object.create(null);
}
};
return {
get(key) {
let value = cache[key];
if (value !== undefined) {
return value;
}
if ((value = previousCache[key]) !== undefined) {
update(key, value);
return value;
}
},
set(key, value) {
if (key in cache) {
cache[key] = value;
} else {
update(key, value);
}
}
};
};
const IMPORTANT_MODIFIER = '!';
const MODIFIER_SEPARATOR = ':';
const EMPTY_MODIFIERS = [];
// Pre-allocated result object shape for consistency
const createResultObject = (modifiers, hasImportantModifier, baseClassName, maybePostfixModifierPosition, isExternal) => ({
modifiers,
hasImportantModifier,
baseClassName,
maybePostfixModifierPosition,
isExternal
});
const createParseClassName = config => {
const {
prefix,
experimentalParseClassName
} = config;
/**
* Parse class name into parts.
*
* Inspired by `splitAtTopLevelOnly` used in Tailwind CSS
* @see https://github.com/tailwindlabs/tailwindcss/blob/v3.2.2/src/util/splitAtTopLevelOnly.js
*/
let parseClassName = className => {
// Use simple array with push for better performance
const modifiers = [];
let bracketDepth = 0;
let parenDepth = 0;
let modifierStart = 0;
let postfixModifierPosition;
const len = className.length;
for (let index = 0; index < len; index++) {
const currentCharacter = className[index];
if (bracketDepth === 0 && parenDepth === 0) {
if (currentCharacter === MODIFIER_SEPARATOR) {
modifiers.push(className.slice(modifierStart, index));
modifierStart = index + 1;
continue;
}
if (currentCharacter === '/') {
postfixModifierPosition = index;
continue;
}
}
if (currentCharacter === '[') bracketDepth++;else if (currentCharacter === ']') bracketDepth--;else if (currentCharacter === '(') parenDepth++;else if (currentCharacter === ')') parenDepth--;
}
const baseClassNameWithImportantModifier = modifiers.length === 0 ? className : className.slice(modifierStart);
// Inline important modifier check
let baseClassName = baseClassNameWithImportantModifier;
let hasImportantModifier = false;
if (baseClassNameWithImportantModifier.endsWith(IMPORTANT_MODIFIER)) {
baseClassName = baseClassNameWithImportantModifier.slice(0, -1);
hasImportantModifier = true;
} else if (
/**
* In Tailwind CSS v3 the important modifier was at the start of the base class name. This is still supported for legacy reasons.
* @see https://github.com/dcastil/tailwind-merge/issues/513#issuecomment-2614029864
*/
baseClassNameWithImportantModifier.startsWith(IMPORTANT_MODIFIER)) {
baseClassName = baseClassNameWithImportantModifier.slice(1);
hasImportantModifier = true;
}
const maybePostfixModifierPosition = postfixModifierPosition && postfixModifierPosition > modifierStart ? postfixModifierPosition - modifierStart : undefined;
return createResultObject(modifiers, hasImportantModifier, baseClassName, maybePostfixModifierPosition);
};
if (prefix) {
const fullPrefix = prefix + MODIFIER_SEPARATOR;
const parseClassNameOriginal = parseClassName;
parseClassName = className => className.startsWith(fullPrefix) ? parseClassNameOriginal(className.slice(fullPrefix.length)) : createResultObject(EMPTY_MODIFIERS, false, className, undefined, true);
}
if (experimentalParseClassName) {
const parseClassNameOriginal = parseClassName;
parseClassName = className => experimentalParseClassName({
className,
parseClassName: parseClassNameOriginal
});
}
return parseClassName;
};
/**
* Sorts modifiers according to following schema:
* - Predefined modifiers are sorted alphabetically
* - When an arbitrary variant appears, it must be preserved which modifiers are before and after it
*/
const createSortModifiers = config => {
// Pre-compute weights for all known modifiers for O(1) comparison
const modifierWeights = new Map();
// Assign weights to sensitive modifiers (highest priority, but preserve order)
config.orderSensitiveModifiers.forEach((mod, index) => {
modifierWeights.set(mod, 1000000 + index); // High weights for sensitive mods
});
return modifiers => {
const result = [];
let currentSegment = [];
// Process modifiers in one pass
for (let i = 0; i < modifiers.length; i++) {
const modifier = modifiers[i];
// Check if modifier is sensitive (starts with '[' or in orderSensitiveModifiers)
const isArbitrary = modifier[0] === '[';
const isOrderSensitive = modifierWeights.has(modifier);
if (isArbitrary || isOrderSensitive) {
// Sort and flush current segment alphabetically
if (currentSegment.length > 0) {
currentSegment.sort();
result.push(...currentSegment);
currentSegment = [];
}
result.push(modifier);
} else {
// Regular modifier - add to current segment for batch sorting
currentSegment.push(modifier);
}
}
// Sort and add any remaining segment items
if (currentSegment.length > 0) {
currentSegment.sort();
result.push(...currentSegment);
}
return result;
};
};
const createConfigUtils = config => ({
cache: createLruCache(config.cacheSize),
parseClassName: createParseClassName(config),
sortModifiers: createSortModifiers(config),
postfixLookupClassGroupIds: createPostfixLookupClassGroupIds(config),
...createClassGroupUtils(config)
});
const createPostfixLookupClassGroupIds = config => {
const lookup = Object.create(null);
const classGroupIds = config.postfixLookupClassGroups;
if (classGroupIds) {
for (let i = 0; i < classGroupIds.length; i++) {
lookup[classGroupIds[i]] = true;
}
}
return lookup;
};
const SPLIT_CLASSES_REGEX = /\s+/;
const mergeClassList = (classList, configUtils) => {
const {
parseClassName,
getClassGroupId,
getConflictingClassGroupIds,
sortModifiers,
postfixLookupClassGroupIds
} = configUtils;
/**
* Set of classGroupIds in following format:
* `{importantModifier}{variantModifiers}{classGroupId}`
* @example 'float'
* @example 'hover:focus:bg-color'
* @example 'md:!pr'
*/
const classGroupsInConflict = [];
const classNames = classList.trim().split(SPLIT_CLASSES_REGEX);
let result = '';
for (let index = classNames.length - 1; index >= 0; index -= 1) {
const originalClassName = classNames[index];
const {
isExternal,
modifiers,
hasImportantModifier,
baseClassName,
maybePostfixModifierPosition
} = parseClassName(originalClassName);
if (isExternal) {
result = originalClassName + (result.length > 0 ? ' ' + result : result);
continue;
}
let hasPostfixModifier = !!maybePostfixModifierPosition;
let classGroupId;
if (hasPostfixModifier) {
const baseClassNameWithoutPostfix = baseClassName.substring(0, maybePostfixModifierPosition);
classGroupId = getClassGroupId(baseClassNameWithoutPostfix);
const classGroupIdWithPostfix = classGroupId && postfixLookupClassGroupIds[classGroupId] ? getClassGroupId(baseClassName) : undefined;
if (classGroupIdWithPostfix && classGroupIdWithPostfix !== classGroupId) {
classGroupId = classGroupIdWithPostfix;
hasPostfixModifier = false;
}
} else {
classGroupId = getClassGroupId(baseClassName);
}
if (!classGroupId) {
if (!hasPostfixModifier) {
// Not a Tailwind class
result = originalClassName + (result.length > 0 ? ' ' + result : result);
continue;
}
classGroupId = getClassGroupId(baseClassName);
if (!classGroupId) {
// Not a Tailwind class
result = originalClassName + (result.length > 0 ? ' ' + result : result);
continue;
}
hasPostfixModifier = false;
}
// Fast path: skip sorting for empty or single modifier
const variantModifier = modifiers.length === 0 ? '' : modifiers.length === 1 ? modifiers[0] : sortModifiers(modifiers).join(':');
const modifierId = hasImportantModifier ? variantModifier + IMPORTANT_MODIFIER : variantModifier;
const classId = modifierId + classGroupId;
if (classGroupsInConflict.indexOf(classId) > -1) {
// Tailwind class omitted due to conflict
continue;
}
classGroupsInConflict.push(classId);
const conflictGroups = getConflictingClassGroupIds(classGroupId, hasPostfixModifier);
for (let i = 0; i < conflictGroups.length; ++i) {
const group = conflictGroups[i];
classGroupsInConflict.push(modifierId + group);
}
// Tailwind class not in conflict
result = originalClassName + (result.length > 0 ? ' ' + result : result);
}
return result;
};
/**
* The code in this file is copied from https://github.com/lukeed/clsx and modified to suit the needs of tailwind-merge better.
*
* Specifically:
* - Runtime code from https://github.com/lukeed/clsx/blob/v1.2.1/src/index.js
* - TypeScript types from https://github.com/lukeed/clsx/blob/v1.2.1/clsx.d.ts
*
* Original code has MIT license: Copyright (c) Luke Edwards <luke.edwards05@gmail.com> (lukeed.com)
*/
const twJoin = (...classLists) => {
let index = 0;
let argument;
let resolvedValue;
let string = '';
while (index < classLists.length) {
if (argument = classLists[index++]) {
if (resolvedValue = toValue(argument)) {
string && (string += ' ');
string += resolvedValue;
}
}
}
return string;
};
const toValue = mix => {
// Fast path for strings
if (typeof mix === 'string') {
return mix;
}
let resolvedValue;
let string = '';
for (let k = 0; k < mix.length; k++) {
if (mix[k]) {
if (resolvedValue = toValue(mix[k])) {
string && (string += ' ');
string += resolvedValue;
}
}
}
return string;
};
const createTailwindMerge = (createConfigFirst, ...createConfigRest) => {
let configUtils;
let cacheGet;
let cacheSet;
let functionToCall;
const initTailwindMerge = classList => {
const config = createConfigRest.reduce((previousConfig, createConfigCurrent) => createConfigCurrent(previousConfig), createConfigFirst());
configUtils = createConfigUtils(config);
cacheGet = configUtils.cache.get;
cacheSet = configUtils.cache.set;
functionToCall = tailwindMerge;
return tailwindMerge(classList);
};
const tailwindMerge = classList => {
const cachedResult = cacheGet(classList);
if (cachedResult) {
return cachedResult;
}
const result = mergeClassList(classList, configUtils);
cacheSet(classList, result);
return result;
};
functionToCall = initTailwindMerge;
return (...args) => functionToCall(twJoin(...args));
};
const fallbackThemeArr = [];
const fromTheme = key => {
const themeGetter = theme => theme[key] || fallbackThemeArr;
themeGetter.isThemeGetter = true;
return themeGetter;
};
const arbitraryValueRegex = /^\[(?:(\w[\w-]*):)?(.+)\]$/i;
const arbitraryVariableRegex = /^\((?:(\w[\w-]*):)?(.+)\)$/i;
const fractionRegex = /^\d+(?:\.\d+)?\/\d+(?:\.\d+)?$/;
const tshirtUnitRegex = /^(\d+(\.\d+)?)?(xs|sm|md|lg|xl)$/;
const lengthUnitRegex = /\d+(%|px|r?em|[sdl]?v([hwib]|min|max)|pt|pc|in|cm|mm|cap|ch|ex|r?lh|cq(w|h|i|b|min|max))|\b(calc|min|max|clamp)\(.+\)|^0$/;
const colorFunctionRegex = /^(rgba?|hsla?|hwb|(ok)?(lab|lch)|color-mix)\(.+\)$/;
// Shadow always begins with x and y offset separated by underscore optionally prepended by inset
const shadowRegex = /^(inset_)?-?((\d+)?\.?(\d+)[a-z]+|0)_-?((\d+)?\.?(\d+)[a-z]+|0)/;
const imageRegex = /^(url|image|image-set|cross-fade|element|(repeating-)?(linear|radial|conic)-gradient)\(.+\)$/;
const isFraction = value => fractionRegex.test(value);
const isNumber = value => !!value && !Number.isNaN(Number(value));
const isInteger = value => !!value && Number.isInteger(Number(value));
const isPercent = value => value.endsWith('%') && isNumber(value.slice(0, -1));
const isTshirtSize = value => tshirtUnitRegex.test(value);
const isAny = () => true;
const isLengthOnly = value =>
// `colorFunctionRegex` check is necessary because color functions can have percentages in them which which would be incorrectly classified as lengths.
// For example, `hsl(0 0% 0%)` would be classified as a length without this check.
// I could also use lookbehind assertion in `lengthUnitRegex` but that isn't supported widely enough.
lengthUnitRegex.test(value) && !colorFunctionRegex.test(value);
const isNever = () => false;
const isShadow = value => shadowRegex.test(value);
const isImage = value => imageRegex.test(value);
const isAnyNonArbitrary = value => !isArbitraryValue(value) && !isArbitraryVariable(value);
const isNamedContainerQuery = value => value.startsWith('@container') && (value[10] === '/' && value[11] !== undefined || value[11] === 's' && value[16] !== undefined && value.startsWith('-size/', 10) || value[11] === 'n' && value[18] !== undefined && value.startsWith('-normal/', 10));
const isArbitrarySize = value => getIsArbitraryValue(value, isLabelSize, isNever);
const isArbitraryValue = value => arbitraryValueRegex.test(value);
const isArbitraryLength = value => getIsArbitraryValue(value, isLabelLength, isLengthOnly);
const isArbitraryNumber = value => getIsArbitraryValue(value, isLabelNumber, isNumber);
const isArbitraryWeight = value => getIsArbitraryValue(value, isLabelWeight, isAny);
const isArbitraryFamilyName = value => getIsArbitraryValue(value, isLabelFamilyName, isNever);
const isArbitraryPosition = value => getIsArbitraryValue(value, isLabelPosition, isNever);
const isArbitraryImage = value => getIsArbitraryValue(value, isLabelImage, isImage);
const isArbitraryShadow = value => getIsArbitraryValue(value, isLabelShadow, isShadow);
const isArbitraryVariable = value => arbitraryVariableRegex.test(value);
const isArbitraryVariableLength = value => getIsArbitraryVariable(value, isLabelLength);
const isArbitraryVariableFamilyName = value => getIsArbitraryVariable(value, isLabelFamilyName);
const isArbitraryVariablePosition = value => getIsArbitraryVariable(value, isLabelPosition);
const isArbitraryVariableSize = value => getIsArbitraryVariable(value, isLabelSize);
const isArbitraryVariableImage = value => getIsArbitraryVariable(value, isLabelImage);
const isArbitraryVariableShadow = value => getIsArbitraryVariable(value, isLabelShadow, true);
const isArbitraryVariableWeight = value => getIsArbitraryVariable(value, isLabelWeight, true);
// Helpers
const getIsArbitraryValue = (value, testLabel, testValue) => {
const result = arbitraryValueRegex.exec(value);
if (result) {
if (result[1]) {
return testLabel(result[1]);
}
return testValue(result[2]);
}
return false;
};
const getIsArbitraryVariable = (value, testLabel, shouldMatchNoLabel = false) => {
const result = arbitraryVariableRegex.exec(value);
if (result) {
if (result[1]) {
return testLabel(result[1]);
}
return shouldMatchNoLabel;
}
return false;
};
// Labels
const isLabelPosition = label => label === 'position' || label === 'percentage';
const isLabelImage = label => label === 'image' || label === 'url';
const isLabelSize = label => label === 'length' || label === 'size' || label === 'bg-size';
const isLabelLength = label => label === 'length';
const isLabelNumber = label => label === 'number';
const isLabelFamilyName = label => label === 'family-name';
const isLabelWeight = label => label === 'number' || label === 'weight';
const isLabelShadow = label => label === 'shadow';
const validators = /*#__PURE__*/Object.defineProperty({
__proto__: null,
isAny,
isAnyNonArbitrary,
isArbitraryFamilyName,
isArbitraryImage,
isArbitraryLength,
isArbitraryNumber,
isArbitraryPosition,
isArbitraryShadow,
isArbitrarySize,
isArbitraryValue,
isArbitraryVariable,
isArbitraryVariableFamilyName,
isArbitraryVariableImage,
isArbitraryVariableLength,
isArbitraryVariablePosition,
isArbitraryVariableShadow,
isArbitraryVariableSize,
isArbitraryVariableWeight,
isArbitraryWeight,
isFraction,
isInteger,
isNamedContainerQuery,
isNumber,
isPercent,
isTshirtSize
}, Symbol.toStringTag, {
value: 'Module'
});
const getDefaultConfig = () => {
/**
* Theme getters for theme variable namespaces
* @see https://tailwindcss.com/docs/theme#theme-variable-namespaces
*/
/***/
const themeColor = fromTheme('color');
const themeFont = fromTheme('font');
const themeText = fromTheme('text');
const themeFontWeight = fromTheme('font-weight');
const themeTracking = fromTheme('tracking');
const themeLeading = fromTheme('leading');
const themeBreakpoint = fromTheme('breakpoint');
const themeContainer = fromTheme('container');
const themeSpacing = fromTheme('spacing');
const themeRadius = fromTheme('radius');
const themeShadow = fromTheme('shadow');
const themeInsetShadow = fromTheme('inset-shadow');
const themeTextShadow = fromTheme('text-shadow');
const themeDropShadow = fromTheme('drop-shadow');
const themeBlur = fromTheme('blur');
const themePerspective = fromTheme('perspective');
const themeAspect = fromTheme('aspect');
const themeEase = fromTheme('ease');
const themeAnimate = fromTheme('animate');
/**
* Helpers to avoid repeating the same scales
*
* We use functions that create a new array every time they're called instead of static arrays.
* This ensures that users who modify any scale by mutating the array (e.g. with `array.push(element)`) don't accidentally mutate arrays in other parts of the config.
*/
/***/
const scaleBreak = () => ['auto', 'avoid', 'all', 'avoid-page', 'page', 'left', 'right', 'column'];
const scalePosition = () => ['center', 'top', 'bottom', 'left', 'right', 'top-left',
// Deprecated since Tailwind CSS v4.1.0, see https://github.com/tailwindlabs/tailwindcss/pull/17378
'left-top', 'top-right',
// Deprecated since Tailwind CSS v4.1.0, see https://github.com/tailwindlabs/tailwindcss/pull/17378
'right-top', 'bottom-right',
// Deprecated since Tailwind CSS v4.1.0, see https://github.com/tailwindlabs/tailwindcss/pull/17378
'right-bottom', 'bottom-left',
// Deprecated since Tailwind CSS v4.1.0, see https://github.com/tailwindlabs/tailwindcss/pull/17378
'left-bottom'];
const scalePositionWithArbitrary = () => [...scalePosition(), isArbitraryVariable, isArbitraryValue];
const scaleOverflow = () => ['auto', 'hidden', 'clip', 'visible', 'scroll'];
const scaleOverscroll = () => ['auto', 'contain', 'none'];
const scaleUnambiguousSpacing = () => [isArbitraryVariable, isArbitraryValue, themeSpacing];
const scaleInset = () => [isFraction, 'full', 'auto', ...scaleUnambiguousSpacing()];
const scaleGridTemplateColsRows = () => [isInteger, 'none', 'subgrid', isArbitraryVariable, isArbitraryValue];
const scaleGridColRowStartAndEnd = () => ['auto', {
span: ['full', isInteger, isArbitraryVariable, isArbitraryValue]
}, isInteger, isArbitraryVariable, isArbitraryValue];
const scaleGridColRowStartOrEnd = () => [isInteger, 'auto', isArbitraryVariable, isArbitraryValue];
const scaleGridAutoColsRows = () => ['auto', 'min', 'max', 'fr', isArbitraryVariable, isArbitraryValue];
const scaleAlignPrimaryAxis = () => ['start', 'end', 'center', 'between', 'around', 'evenly', 'stretch', 'baseline', 'center-safe', 'end-safe'];
const scaleAlignSecondaryAxis = () => ['start', 'end', 'center', 'stretch', 'center-safe', 'end-safe'];
const scaleMargin = () => ['auto', ...scaleUnambiguousSpacing()];
const scaleSizing = () => [isFraction, 'auto', 'full', 'dvw', 'dvh', 'lvw', 'lvh', 'svw', 'svh', 'min', 'max', 'fit', ...scaleUnambiguousSpacing()];
const scaleSizingInline = () => [isFraction, 'screen', 'full', 'dvw', 'lvw', 'svw', 'min', 'max', 'fit', ...scaleUnambiguousSpacing()];
const scaleSizingBlock = () => [isFraction, 'screen', 'full', 'lh', 'dvh', 'lvh', 'svh', 'min', 'max', 'fit', ...scaleUnambiguousSpacing()];
const scaleColor = () => [themeColor, isArbitraryVariable, isArbitraryValue];
const scaleBgPosition = () => [...scalePosition(), isArbitraryVariablePosition, isArbitraryPosition, {
position: [isArbitraryVariable, isArbitraryValue]
}];
const scaleBgRepeat = () => ['no-repeat', {
repeat: ['', 'x', 'y', 'space', 'round']
}];
const scaleBgSize = () => ['auto', 'cover', 'contain', isArbitraryVariableSize, isArbitrarySize, {
size: [isArbitraryVariable, isArbitraryValue]
}];
const scaleGradientStopPosition = () => [isPercent, isArbitraryVariableLength, isArbitraryLength];
const scaleRadius = () => [
// Deprecated since Tailwind CSS v4.0.0
'', 'none', 'full', themeRadius, isArbitraryVariable, isArbitraryValue];
const scaleBorderWidth = () => ['', isNumber, isArbitraryVariableLength, isArbitraryLength];
const scaleLineStyle = () => ['solid', 'dashed', 'dotted', 'double'];
const scaleBlendMode = () => ['normal', 'multiply', 'screen', 'overlay', 'darken', 'lighten', 'color-dodge', 'color-burn', 'hard-light', 'soft-light', 'difference', 'exclusion', 'hue', 'saturation', 'color', 'luminosity'];
const scaleMaskImagePosition = () => [isNumber, isPercent, isArbitraryVariablePosition, isArbitraryPosition];
const scaleBlur = () => [
// Deprecated since Tailwind CSS v4.0.0
'', 'none', themeBlur, isArbitraryVariable, isArbitraryValue];
const scaleRotate = () => ['none', isNumber, isArbitraryVariable, isArbitraryValue];
const scaleScale = () => ['none', isNumber, isArbitraryVariable, isArbitraryValue];
const scaleSkew = () => [isNumber, isArbitraryVariable, isArbitraryValue];
const scaleTranslate = () => [isFraction, 'full', ...scaleUnambiguousSpacing()];
return {
cacheSize: 500,
theme: {
animate: ['spin', 'ping', 'pulse', 'bounce'],
aspect: ['video'],
blur: [isTshirtSize],
breakpoint: [isTshirtSize],
color: [isAny],
container: [isTshirtSize],
'drop-shadow': [isTshirtSize],
ease: ['in', 'out', 'in-out'],
font: [isAnyNonArbitrary],
'font-weight': ['thin', 'extralight', 'light', 'normal', 'medium', 'semibold', 'bold', 'extrabold', 'black'],
'inset-shadow': [isTshirtSize],
leading: ['none', 'tight', 'snug', 'normal', 'relaxed', 'loose'],
perspective: ['dramatic', 'near', 'normal', 'midrange', 'distant', 'none'],
radius: [isTshirtSize],
shadow: [isTshirtSize],
spacing: ['px', isNumber],
text: [isTshirtSize],
'text-shadow': [isTshirtSize],
tracking: ['tighter', 'tight', 'normal', 'wide', 'wider', 'widest']
},
classGroups: {
// --------------
// --- Layout ---
// --------------
/**
* Aspect Ratio
* @see https://tailwindcss.com/docs/aspect-ratio
*/
aspect: [{
aspect: ['auto', 'square', isFraction, isArbitraryValue, isArbitraryVariable, themeAspect]
}],
/**
* Container
* @see https://tailwindcss.com/docs/container
* @deprecated since Tailwind CSS v4.0.0
*/
container: ['container'],
/**
* Container Type
* @see https://tailwindcss.com/docs/responsive-design#container-queries
*/
'container-type': [{
'@container': ['', 'normal', 'size', isArbitraryVariable, isArbitraryValue]
}],
/**
* Container Name
* @see https://tailwindcss.com/docs/responsive-design#named-containers
*/
'container-named': [isNamedContainerQuery],
/**
* Columns
* @see https://tailwindcss.com/docs/columns
*/
columns: [{
columns: [isNumber, isArbitraryValue, isArbitraryVariable, themeContainer]
}],
/**
* Break After
* @see https://tailwindcss.com/docs/break-after
*/
'break-after': [{
'break-after': scaleBreak()
}],
/**
* Break Before
* @see https://tailwindcss.com/docs/break-before
*/
'break-before': [{
'break-before': scaleBreak()
}],
/**
* Break Inside
* @see https://tailwindcss.com/docs/break-inside
*/
'break-inside': [{
'break-inside': ['auto', 'avoid', 'avoid-page', 'avoid-column']
}],
/**
* Box Decoration Break
* @see https://tailwindcss.com/docs/box-decoration-break
*/
'box-decoration': [{
'box-decoration': ['slice', 'clone']
}],
/**
* Box Sizing
* @see https://tailwindcss.com/docs/box-sizing
*/
box: [{
box: ['border', 'content']
}],
/**
* Display
* @see https://tailwindcss.com/docs/display
*/
display: ['block', 'inline-block', 'inline', 'flex', 'inline-flex', 'table', 'inline-table', 'table-caption', 'table-cell', 'table-column', 'table-column-group', 'table-footer-group', 'table-header-group', 'table-row-group', 'table-row', 'flow-root', 'grid', 'inline-grid', 'contents', 'list-item', 'hidden'],
/**
* Screen Reader Only
* @see https://tailwindcss.com/docs/display#screen-reader-only
*/
sr: ['sr-only', 'not-sr-only'],
/**
* Floats
* @see https://tailwindcss.com/docs/float
*/
float: [{
float: ['right', 'left', 'none', 'start', 'end']
}],
/**
* Clear
* @see https://tailwindcss.com/docs/clear
*/
clear: [{
clear: ['left', 'right', 'both', 'none', 'start', 'end']
}],
/**
* Isolation
* @see https://tailwindcss.com/docs/isolation
*/
isolation: ['isolate', 'isolation-auto'],
/**
* Object Fit
* @see https://tailwindcss.com/docs/object-fit
*/
'object-fit': [{
object: ['contain', 'cover', 'fill', 'none', 'scale-down']
}],
/**
* Object Position
* @see https://tailwindcss.com/docs/object-position
*/
'object-position': [{
object: scalePositionWithArbitrary()
}],
/**
* Overflow
* @see https://tailwindcss.com/docs/overflow
*/
overflow: [{
overflow: scaleOverflow()
}],
/**
* Overflow X
* @see https://tailwindcss.com/docs/overflow
*/
'overflow-x': [{
'overflow-x': scaleOverflow()
}],
/**
* Overflow Y
* @see https://tailwindcss.com/docs/overflow
*/
'overflow-y': [{
'overflow-y': scaleOverflow()
}],
/**
* Overscroll Behavior
* @see https://tailwindcss.com/docs/overscroll-behavior
*/
overscroll: [{
overscroll: scaleOverscroll()
}],
/**
* Overscroll Behavior X
* @see https://tailwindcss.com/docs/overscroll-behavior
*/
'overscroll-x': [{
'overscroll-x': scaleOverscroll()
}],
/**
* Overscroll Behavior Y
* @see https://tailwindcss.com/docs/overscroll-behavior
*/
'overscroll-y': [{
'overscroll-y': scaleOverscroll()
}],
/**
* Position
* @see https://tailwindcss.com/docs/position
*/
position: ['static', 'fixed', 'absolute', 'relative', 'sticky'],
/**
* Inset
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
inset: [{
inset: scaleInset()
}],
/**
* Inset Inline
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
'inset-x': [{
'inset-x': scaleInset()
}],
/**
* Inset Block
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
'inset-y': [{
'inset-y': scaleInset()
}],
/**
* Inset Inline Start
* @see https://tailwindcss.com/docs/top-right-bottom-left
* @todo class group will be renamed to `inset-s` in next major release
*/
start: [{
'inset-s': scaleInset(),
/**
* @deprecated since Tailwind CSS v4.2.0 in favor of `inset-s-*` utilities.
* @see https://github.com/tailwindlabs/tailwindcss/pull/19613
*/
start: scaleInset()
}],
/**
* Inset Inline End
* @see https://tailwindcss.com/docs/top-right-bottom-left
* @todo class group will be renamed to `inset-e` in next major release
*/
end: [{
'inset-e': scaleInset(),
/**
* @deprecated since Tailwind CSS v4.2.0 in favor of `inset-e-*` utilities.
* @see https://github.com/tailwindlabs/tailwindcss/pull/19613
*/
end: scaleInset()
}],
/**
* Inset Block Start
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
'inset-bs': [{
'inset-bs': scaleInset()
}],
/**
* Inset Block End
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
'inset-be': [{
'inset-be': scaleInset()
}],
/**
* Top
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
top: [{
top: scaleInset()
}],
/**
* Right
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
right: [{
right: scaleInset()
}],
/**
* Bottom
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
bottom: [{
bottom: scaleInset()
}],
/**
* Left
* @see https://tailwindcss.com/docs/top-right-bottom-left
*/
left: [{
left: scaleInset()
}],
/**
* Visibility
* @see https://tailwindcss.com/docs/visibility
*/
visibility: ['visible', 'invisible', 'collapse'],
/**
* Z-Index
* @see https://tailwindcss.com/docs/z-index
*/
z: [{
z: [isInteger, 'auto', isArbitraryVariable, isArbitraryValue]
}],
// ------------------------
// --- Flexbox and Grid ---
// ------------------------
/**
* Flex Basis
* @see https://tailwindcss.com/docs/flex-basis
*/
basis: [{
basis: [isFraction, 'full', 'auto', themeContainer, ...scaleUnambiguousSpacing()]
}],
/**
* Flex Direction
* @see https://tailwindcss.com/docs/flex-direction
*/
'flex-direction': [{
flex: ['row', 'row-reverse', 'col', 'col-reverse']
}],
/**
* Flex Wrap
* @see https://tailwindcss.com/docs/flex-wrap
*/
'flex-wrap': [{
flex: ['nowrap', 'wrap', 'wrap-reverse']
}],
/**
* Flex
* @see https://tailwindcss.com/docs/flex
*/
flex: [{
flex: [isNumber, isFraction, 'auto', 'initial', 'none', isArbitraryValue]
}],
/**
* Flex Grow
* @see https://tailwindcss.com/docs/flex-grow
*/
grow: [{
grow: ['', isNumber, isArbitraryVariable, isArbitraryValue]
}],
/**
* Flex Shrink
* @see https://tailwindcss.com/docs/flex-shrink
*/
shrink: [{
shrink: ['', isNumber, isArbitraryVariable, isArbitraryValue]
}],
/**
* Order
* @see https://tailwindcss.com/docs/order
*/
order: [{
order: [isInteger, 'first', 'last', 'none', isArbitraryVariable, isArbitraryValue]
}],
/**
* Grid Template Columns
* @see https://tailwindcss.com/docs/grid-template-columns
*/
'grid-cols': [{
'grid-cols': scaleGridTemplateColsRows()
}],
/**
* Grid Column Start / End
* @see https://tailwindcss.com/docs/grid-column
*/
'col-start-end': [{
col: scaleGridColRowStartAndEnd()
}],
/**
* Grid Column Start
* @see https://tailwindcss.com/docs/grid-column
*/
'col-start': [{
'col-start': scaleGridColRowStartOrEnd()
}],
/**
* Grid Column End
* @see https://tailwindcss.com/docs/grid-column
*/
'col-end': [{
'col-end': scaleGridColRowStartOrEnd()
}],
/**
* Grid Template Rows
* @see https://tailwindcss.com/docs/grid-template-rows
*/
'grid-rows': [{
'grid-rows': scaleGridTemplateColsRows()
}],
/**
* Grid Row Start / End
* @see https://tailwindcss.com/docs/grid-row
*/
'row-start-end': [{
row: scaleGridColRowStartAndEnd()
}],
/**
* Grid Row Start
* @see https://tailwindcss.com/docs/grid-row
*/
'row-start': [{
'row-start': scaleGridColRowStartOrEnd()
}],
/**
* Grid Row End
* @see https://tailwindcss.com/docs/grid-row
*/
'row-end': [{
'row-end': scaleGridColRowStartOrEnd()
}],
/**
* Grid Auto Flow
* @see https://tailwindcss.com/docs/grid-auto-flow
*/
'grid-flow': [{
'grid-flow': ['row', 'col', 'dense', 'row-dense', 'col-dense']
}],
/**
* Grid Auto Columns
* @see https://tailwindcss.com/docs/grid-auto-columns
*/
'auto-cols': [{
'auto-cols': scaleGridAutoColsRows()
}],
/**
* Grid Auto Rows
* @see https://tailwindcss.com/docs/grid-auto-rows
*/
'auto-rows': [{
'auto-rows': scaleGridAutoColsRows()
}],
/**
* Gap
* @see https://tailwindcss.com/docs/gap
*/
gap: [{
gap: scaleUnambiguousSpacing()
}],
/**
* Gap X
* @see https://tailwindcss.com/docs/gap
*/
'gap-x': [{
'gap-x': scaleUnambiguousSpacing()
}],
/**
* Gap Y
* @see https://tailwindcss.com/docs/gap
*/
'gap-y': [{
'gap-y': scaleUnambiguousSpacing()
}],
/**
* Justify Content
* @see https://tailwindcss.com/docs/justify-content
*/
'justify-content': [{
justify: [...scaleAlignPrimaryAxis(), 'normal']
}],
/**
* Justify Items
* @see https://tailwindcss.com/docs/justify-items
*/
'justify-items': [{
'justify-items': [...scaleAlignSecondaryAxis(), 'normal']
}],
/**
* Justify Self
* @see https://tailwindcss.com/docs/justify-self
*/
'justify-self': [{
'justify-self': ['auto', ...scaleAlignSecondaryAxis()]
}],
/**
* Align Content
* @see https://tailwindcss.com/docs/align-content
*/
'align-content': [{
content: ['normal', ...scaleAlignPrimaryAxis()]
}],
/**
* Align Items
* @see https://tailwindcss.com/docs/align-items
*/
'align-items': [{
items: [...scaleAlignSecondaryAxis(), {
baseline: ['', 'last']
}]
}],
/**
* Align Self
* @see https://tailwindcss.com/docs/align-self
*/
'align-self': [{
self: ['auto', ...scaleAlignSecondaryAxis(), {
baseline: ['', 'last']
}]
}],
/**
* Place Content
* @see https://tailwindcss.com/docs/place-content
*/
'place-content': [{
'place-content': scaleAlignPrimaryAxis()
}],
/**
* Place Items
* @see https://tailwindcss.com/docs/place-items
*/
'place-items': [{
'place-items': [...scaleAlignSecondaryAxis(), 'baseline']
}],
/**
* Place Self
* @see https://tailwindcss.com/docs/place-self
*/
'place-self': [{
'place-self': ['auto', ...scaleAlignSecondaryAxis()]
}],
// Spacing
/**
* Padding
* @see https://tailwindcss.com/docs/padding
*/
p: [{
p: scaleUnambiguousSpacing()
}],
/**
* Padding Inline
* @see https://tailwindcss.com/docs/padding
*/
px: [{
px: scaleUnambiguousSpacing()
}],
/**
* Padding Block
* @see https://tailwindcss.com/docs/padding
*/
py: [{
py: scaleUnambiguousSpacing()
}],
/**
* Padding Inline Start
* @see https://tailwindcss.com/docs/padding
*/
ps: [{
ps: scaleUnambiguousSpacing()
}],
/**
* Padding Inline End
* @see https://tailwindcss.com/docs/padding
*/
pe: [{
pe: scaleUnambiguousSpacing()
}],
/**
* Padding Block Start
* @see https://tailwindcss.com/docs/padding
*/
pbs: [{
pbs: scaleUnambiguousSpacing()
}],
/**
* Padding Block End
* @see https://tailwindcss.com/docs/padding
*/
pbe: [{
pbe: scaleUnambiguousSpacing()
}],
/**
* Padding Top
* @see https://tailwindcss.com/docs/padding
*/
pt: [{
pt: scaleUnambiguousSpacing()
}],
/**
* Padding Right
* @see https://tailwindcss.com/docs/padding
*/
pr: [{
pr: scaleUnambiguousSpacing()
}],
/**
* Padding Bottom
* @see https://tailwindcss.com/docs/padding
*/
pb: [{
pb: scaleUnambiguousSpacing()
}],
/**
* Padding Left
* @see https://tailwindcss.com/docs/padding
*/
pl: [{
pl: scaleUnambiguousSpacing()
}],
/**
* Margin
* @see https://tailwindcss.com/docs/margin
*/
m: [{
m: scaleMargin()
}],
/**
* Margin Inline
* @see https://tailwindcss.com/docs/margin
*/
mx: [{
mx: scaleMargin()
}],
/**
* Margin Block
* @see https://tailwindcss.com/docs/margin
*/
my: [{
my: scaleMargin()
}],
/**
* Margin Inline Start
* @see https://tailwindcss.com/docs/margin
*/
ms: [{
ms: scaleMargin()
}],
/**
* Margin Inline End
* @see https://tailwindcss.com/docs/margin
*/
me: [{
me: scaleMargin()
}],
/**
* Margin Block Start
* @see https://tailwindcss.com/docs/margin
*/
mbs: [{
mbs: scaleMargin()
}],
/**
* Margin Block End
* @see https://tailwindcss.com/docs/margin
*/
mbe: [{
mbe: scaleMargin()
}],
/**
* Margin Top
* @see https://tailwindcss.com/docs/margin
*/
mt: [{
mt: scaleMargin()
}],
/**
* Margin Right
* @see https://tailwindcss.com/docs/margin
*/
mr: [{
mr: scaleMargin()
}],
/**
* Margin Bottom
* @see https://tailwindcss.com/docs/margin
*/
mb: [{
mb: scaleMargin()
}],
/**
* Margin Left
* @see https://tailwindcss.com/docs/margin
*/
ml: [{
ml: scaleMargin()
}],
/**
* Space Between X
* @see https://tailwindcss.com/docs/margin#adding-space-between-children
*/
'space-x': [{
'space-x': scaleUnambiguousSpacing()
}],
/**
* Space Between X Reverse
* @see https://tailwindcss.com/docs/margin#adding-space-between-children
*/
'space-x-reverse': ['space-x-reverse'],
/**
* Space Between Y
* @see https://tailwindcss.com/docs/margin#adding-space-between-children
*/
'space-y': [{
'space-y': scaleUnambiguousSpacing()
}],
/**
* Space Between Y Reverse
* @see https://tailwindcss.com/docs/margin#adding-space-between-children
*/
'space-y-reverse': ['space-y-reverse'],
// --------------
// --- Sizing ---
// --------------
/**
* Size
* @see https://tailwindcss.com/docs/width#setting-both-width-and-height
*/
size: [{
size: scaleSizing()
}],
/**
* Inline Size
* @see https://tailwindcss.com/docs/width
*/
'inline-size': [{
inline: ['auto', ...scaleSizingInline()]
}],
/**
* Min-Inline Size
* @see https://tailwindcss.com/docs/min-width
*/
'min-inline-size': [{
'min-inline': ['auto', ...scaleSizingInline()]
}],
/**
* Max-Inline Size
* @see https://tailwindcss.com/docs/max-width
*/
'max-inline-size': [{
'max-inline': ['none', ...scaleSizingInline()]
}],
/**
* Block Size
* @see https://tailwindcss.com/docs/height
*/
'block-size': [{
block: ['auto', ...scaleSizingBlock()]
}],
/**
* Min-Block Size
* @see https://tailwindcss.com/docs/min-height
*/
'min-block-size': [{
'min-block': ['auto', ...scaleSizingBlock()]
}],
/**
* Max-Block Size
* @see https://tailwindcss.com/docs/max-height
*/
'max-block-size': [{
'max-block': ['none', ...scaleSizingBlock()]
}],
/**
* Width
* @see https://tailwindcss.com/docs/width
*/
w: [{
w: [themeContainer, 'screen', ...scaleSizing()]
}],
/**
* Min-Width
* @see https://tailwindcss.com/docs/min-width
*/
'min-w': [{
'min-w': [themeContainer, 'screen', /** Deprecated. @see https://github.com/tailwindlabs/tailwindcss.com/issues/2027#issuecomment-2620152757 */
'none', ...scaleSizing()]
}],
/**
* Max-Width
* @see https://tailwindcss.com/docs/max-width
*/
'max-w': [{
'max-w': [themeContainer, 'screen', 'none', /** Deprecated since Tailwind CSS v4.0.0. @see https://github.com/tailwindlabs/tailwindcss.com/issues/2027#issuecomment-2620152757 */
'prose', /** Deprecated since Tailwind CSS v4.0.0. @see https://github.com/tailwindlabs/tailwindcss.com/issues/2027#issuecomment-2620152757 */
{
screen: [themeBreakpoint]
}, ...scaleSizing()]
}],
/**
* Height
* @see https://tailwindcss.com/docs/height
*/
h: [{
h: ['screen', 'lh', ...scaleSizing()]
}],
/**
* Min-Height
* @see https://tailwindcss.com/docs/min-height
*/
'min-h': [{