@ionic/core/dist/collection/components/back-button/back-button.md.css

Base components for Ionic

/**
 * Convert a font size to a dynamic font size.
 * Fonts that participate in Dynamic Type should use
 * dynamic font sizes.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param unit (optional) - The unit to convert to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * Convert a font size to a dynamic font size but impose
 * a maximum font size.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param maxScale - The maximum scale of the font (i.e. 2.5 for a maximum 250% scale).
 * @param unit (optional) - The unit to convert the initial font size to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * Convert a font size to a dynamic font size but impose
 * a minimum font size.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param minScale - The minimum scale of the font (i.e. 0.8 for a minimum 80% scale).
 * @param unit (optional) - The unit to convert the initial font size to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * Convert a font size to a dynamic font size but impose
 * maximum and minimum font sizes.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param minScale - The minimum scale of the font (i.e. 0.8 for a minimum 80% scale).
 * @param maxScale - The maximum scale of the font (i.e. 2.5 for a maximum 250% scale).
 * @param unit (optional) - The unit to convert the initial font size to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * A heuristic that applies CSS to tablet
 * viewports.
 *
 * Usage:
 * @include tablet-viewport() {
 *   :host {
 *     background-color: green;
 *   }
 * }
 */
/**
 * A heuristic that applies CSS to mobile
 * viewports (i.e. phones, not tablets).
 *
 * Usage:
 * @include mobile-viewport() {
 *   :host {
 *     background-color: blue;
 *   }
 * }
 */
:host {
  /**
    * @prop --background: Background of the button
    * @prop --background-focused: Background of the button when focused with the tab key
    * @prop --background-focused-opacity: Opacity of the button background when focused with the tab key
    * @prop --background-hover: Background of the button on hover
    * @prop --background-hover-opacity: Opacity of the background on hover
    *
    * @prop --color: Text color of the button
    * @prop --color-focused: Text color of the button when focused with the tab key
    * @prop --color-hover: Text color of the button on hover
    *
    * @prop --min-width: Minimum width of the button
    * @prop --min-height: Minimum height of the button
    *
    * @prop --transition: Transition of the button
    *
    * @prop --border-radius: Border radius of the button
    *
    * @prop --ripple-color: Color of the button ripple effect
    *
    * @prop --opacity: Opacity of the button
    *
    * @prop --margin-top: Top margin of the button
    * @prop --margin-end: Right margin if direction is left-to-right, and left margin if direction is right-to-left of the button
    * @prop --margin-bottom: Bottom margin of the button
    * @prop --margin-start: Left margin if direction is left-to-right, and right margin if direction is right-to-left of the button
    *
    * @prop --padding-top: Top padding of the button
    * @prop --padding-end: Right padding if direction is left-to-right, and left padding if direction is right-to-left of the button
    * @prop --padding-bottom: Bottom padding of the button
    * @prop --padding-start: Left padding if direction is left-to-right, and right padding if direction is right-to-left of the button
    *
    * @prop --icon-margin-top: Top margin of the button icon
    * @prop --icon-margin-end: Right margin if direction is left-to-right, and left margin if direction is right-to-left of the button icon
    * @prop --icon-margin-bottom: Bottom margin of the button icon
    * @prop --icon-margin-start: Left margin if direction is left-to-right, and right margin if direction is right-to-left of the button icon
    *
    * @prop --icon-padding-top: Top padding of the button icon
    * @prop --icon-padding-end: Right padding if direction is left-to-right, and left padding if direction is right-to-left of the button icon
    * @prop --icon-padding-bottom: Bottom padding of the button icon
    * @prop --icon-padding-start: Left padding if direction is left-to-right, and right padding if direction is right-to-left of the button icon
    *
    * @prop --icon-font-size: Font size of the button icon
    * @prop --icon-font-weight: Font weight of the button icon
    */
  --background: transparent;
  --color-focused: currentColor;
  --color-hover: currentColor;
  --icon-margin-top: 0;
  --icon-margin-bottom: 0;
  --icon-padding-top: 0;
  --icon-padding-end: 0;
  --icon-padding-bottom: 0;
  --icon-padding-start: 0;
  --margin-top: 0;
  --margin-end: 0;
  --margin-bottom: 0;
  --margin-start: 0;
  --min-width: auto;
  --min-height: auto;
  --padding-top: 0;
  --padding-end: 0;
  --padding-bottom: 0;
  --padding-start: 0;
  --opacity: 1;
  --ripple-color: currentColor;
  --transition: background-color, opacity 100ms linear;
  display: none;
  min-width: var(--min-width);
  min-height: var(--min-height);
  color: var(--color);
  font-family: var(--ion-font-family, inherit);
  text-align: center;
  text-decoration: none;
  text-overflow: ellipsis;
  text-transform: none;
  white-space: nowrap;
  user-select: none;
  font-kerning: none;
}

ion-ripple-effect {
  color: var(--ripple-color);
}

:host(.ion-color) .button-native {
  color: var(--ion-color-base);
}

:host(.show-back-button) {
  display: block;
}

:host(.back-button-disabled) {
  cursor: default;
  opacity: 0.5;
  pointer-events: none;
}

.button-native {
  border-radius: var(--border-radius);
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  -webkit-margin-start: var(--margin-start);
  margin-inline-start: var(--margin-start);
  -webkit-margin-end: var(--margin-end);
  margin-inline-end: var(--margin-end);
  margin-top: var(--margin-top);
  margin-bottom: var(--margin-bottom);
  -webkit-padding-start: var(--padding-start);
  padding-inline-start: var(--padding-start);
  -webkit-padding-end: var(--padding-end);
  padding-inline-end: var(--padding-end);
  padding-top: var(--padding-top);
  padding-bottom: var(--padding-bottom);
  font-family: inherit;
  font-size: inherit;
  font-style: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  text-decoration: inherit;
  text-indent: inherit;
  text-overflow: inherit;
  text-transform: inherit;
  text-align: inherit;
  white-space: inherit;
  color: inherit;
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  min-height: inherit;
  transition: var(--transition);
  border: 0;
  outline: none;
  background: var(--background);
  line-height: 1;
  cursor: pointer;
  opacity: var(--opacity);
  overflow: hidden;
  user-select: none;
  z-index: 0;
  appearance: none;
}

.button-inner {
  display: flex;
  position: relative;
  flex-flow: row nowrap;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  z-index: 1;
}

ion-icon {
  -webkit-padding-start: var(--icon-padding-start);
  padding-inline-start: var(--icon-padding-start);
  -webkit-padding-end: var(--icon-padding-end);
  padding-inline-end: var(--icon-padding-end);
  padding-top: var(--icon-padding-top);
  padding-bottom: var(--icon-padding-bottom);
  -webkit-margin-start: var(--icon-margin-start);
  margin-inline-start: var(--icon-margin-start);
  -webkit-margin-end: var(--icon-margin-end);
  margin-inline-end: var(--icon-margin-end);
  margin-top: var(--icon-margin-top);
  margin-bottom: var(--icon-margin-bottom);
  display: inherit;
  font-size: var(--icon-font-size);
  font-weight: var(--icon-font-weight);
  pointer-events: none;
}

:host(.ion-focused) .button-native {
  color: var(--color-focused);
}
:host(.ion-focused) .button-native::after {
  background: var(--background-focused);
  opacity: var(--background-focused-opacity);
}

.button-native::after {
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  position: absolute;
  content: "";
  opacity: 0;
}

@media (any-hover: hover) {
  :host(:hover) .button-native {
    color: var(--color-hover);
  }
  :host(:hover) .button-native::after {
    background: var(--background-hover);
    opacity: var(--background-hover-opacity);
  }
}
:host(.ion-color.ion-focused) .button-native {
  color: var(--ion-color-base);
}

@media (any-hover: hover) {
  :host(.ion-color:hover) .button-native {
    color: var(--ion-color-base);
  }
}
:host(.in-toolbar:not(.in-toolbar-color)) {
  color: var(--ion-toolbar-color, var(--color));
}

/**
 * Convert a font size to a dynamic font size.
 * Fonts that participate in Dynamic Type should use
 * dynamic font sizes.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param unit (optional) - The unit to convert to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * Convert a font size to a dynamic font size but impose
 * a maximum font size.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param maxScale - The maximum scale of the font (i.e. 2.5 for a maximum 250% scale).
 * @param unit (optional) - The unit to convert the initial font size to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * Convert a font size to a dynamic font size but impose
 * a minimum font size.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param minScale - The minimum scale of the font (i.e. 0.8 for a minimum 80% scale).
 * @param unit (optional) - The unit to convert the initial font size to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * Convert a font size to a dynamic font size but impose
 * maximum and minimum font sizes.
 * @param size - The initial font size including the unit (i.e. px or pt)
 * @param minScale - The minimum scale of the font (i.e. 0.8 for a minimum 80% scale).
 * @param maxScale - The maximum scale of the font (i.e. 2.5 for a maximum 250% scale).
 * @param unit (optional) - The unit to convert the initial font size to. Use this if you want to
 * convert to a unit other than $baselineUnit.
 */
/**
 * A heuristic that applies CSS to tablet
 * viewports.
 *
 * Usage:
 * @include tablet-viewport() {
 *   :host {
 *     background-color: green;
 *   }
 * }
 */
/**
 * A heuristic that applies CSS to mobile
 * viewports (i.e. phones, not tablets).
 *
 * Usage:
 * @include mobile-viewport() {
 *   :host {
 *     background-color: blue;
 *   }
 * }
 */
:host {
  --border-radius: 4px;
  --background-focused: currentColor;
  --background-focused-opacity: .12;
  --background-hover: currentColor;
  --background-hover-opacity: 0.04;
  --color: currentColor;
  --icon-margin-end: 0;
  --icon-margin-start: 0;
  --icon-font-size: 1.5rem;
  --icon-font-weight: normal;
  --min-height: 32px;
  --min-width: 44px;
  --padding-start: 12px;
  --padding-end: 12px;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
}

:host(.back-button-has-icon-only) {
  --border-radius: 50%;
  min-width: 48px;
  min-height: 48px;
  /**
   * This allows the icon only button to
   * keep its circular shape even when the
   * text scales up.
   */
  aspect-ratio: 1/1;
}

.button-native {
  box-shadow: none;
}

.button-text {
  -webkit-padding-start: 4px;
  padding-inline-start: 4px;
  -webkit-padding-end: 4px;
  padding-inline-end: 4px;
  padding-top: 0;
  padding-bottom: 0;
}

ion-icon {
  line-height: 0.67;
  text-align: start;
}

@media (any-hover: hover) {
  :host(.ion-color:hover) .button-native::after {
    background: var(--ion-color-base);
  }
}
:host(.ion-color.ion-focused) .button-native::after {
  background: var(--ion-color-base);
}