uikit/src/less/components/position.less

UIkit is a lightweight and modular front-end framework for developing fast and powerful web interfaces.

// Name:            Position
// Description:     Utilities to position content
//
// Component:       `uk-position-absolute`
//                  `uk-position-relative`
//                  `uk-position-z-index`
//                  `uk-position-top`
//                  `uk-position-bottom`
//                  `uk-position-left`
//                  `uk-position-right`
//                  `uk-position-top-left`
//                  `uk-position-top-center`
//                  `uk-position-top-right`
//                  `uk-position-bottom-left`
//                  `uk-position-bottom-center`
//                  `uk-position-bottom-right`
//                  `uk-position-center`
//                  `uk-position-center-left`
//                  `uk-position-center-right`
//                  `uk-position-cover`
//
// Modifiers:       `uk-position-small`
//                  `uk-position-medium`
//                  `uk-position-large`
//
// ========================================================================


// Variables
// ========================================================================

@position-small-margin:                                @global-small-gutter;
@position-medium-margin:                               @global-gutter;
@position-large-margin:                                @global-gutter;
@position-large-margin-l:                              50px;


/* ========================================================================
   Component: Position
 ========================================================================== */


/* Directions
 ========================================================================== */

/*
 * 1. Prevent content overflow if `max-width: 100%` is used inside position container.
 */

[class*='uk-position-top'],
[class*='uk-position-bottom'],
[class*='uk-position-left'],
[class*='uk-position-right'],
[class*='uk-position-center'] {
    position: absolute !important;
    /* 1 */
    max-width: 100%;
}


/* Edges
 ========================================================================== */

/* Don't use `width: 100%` because it is wrong if the parent has padding. */
.uk-position-top {
    top: 0;
    left: 0;
    right: 0;
}

.uk-position-bottom {
    bottom: 0;
    left: 0;
    right: 0;
}

.uk-position-left {
    top: 0;
    bottom: 0;
    left: 0;
}

.uk-position-right {
    top: 0;
    bottom: 0;
    right: 0;
}


/* Corners
 ========================================================================== */

.uk-position-top-left {
    top: 0;
    left: 0;
}

.uk-position-top-right {
    top: 0;
    right: 0;
}

.uk-position-bottom-left {
    bottom: 0;
    left: 0;
}

.uk-position-bottom-right {
    bottom: 0;
    right: 0;
}

/*
 * Center
 * 1. Fix text wrapping if content is larger than 50% of the container.
 */

.uk-position-center {
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    /* 1 */
    width: max-content;
    max-width: 100%;
    box-sizing: border-box;
}

/* Vertical */
[class*='uk-position-center-left'],
[class*='uk-position-center-right'] {
    top: 50%;
    transform: translateY(-50%);
}

.uk-position-center-left { left: 0; }
.uk-position-center-right { right: 0; }

.uk-position-center-left-out {
    right: 100%;
    width: max-content;
}

.uk-position-center-right-out {
    left: 100%;
    width: max-content;
}

/* Horizontal */
.uk-position-top-center,
.uk-position-bottom-center {
    left: 50%;
    transform: translateX(-50%);
    /* 1 */
    width: max-content;
    max-width: 100%;
    box-sizing: border-box;
}

.uk-position-top-center { top: 0; }
.uk-position-bottom-center { bottom: 0; }


/* Cover
 ========================================================================== */

.uk-position-cover {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}


/* Utility
 ========================================================================== */

.uk-position-relative { position: relative !important; }

.uk-position-absolute { position: absolute !important; }

.uk-position-fixed { position: fixed !important; }

.uk-position-z-index { z-index: 1; }


/* Margin modifier
 ========================================================================== */

/*
 * Small
 */

.uk-position-small {
    max-width: ~'calc(100% - (@{position-small-margin} * 2))';
    margin: @position-small-margin;
}

.uk-position-small.uk-position-center { transform: translate(-50%, -50%) translate(-@position-small-margin, -@position-small-margin); }

.uk-position-small[class*='uk-position-center-left'],
.uk-position-small[class*='uk-position-center-right'] { transform: translateY(-50%) translateY(-@position-small-margin); }

.uk-position-small.uk-position-top-center,
.uk-position-small.uk-position-bottom-center { transform: translateX(-50%) translateX(-@position-small-margin); }

/*
 * Medium
 */

.uk-position-medium {
    max-width: ~'calc(100% - (@{position-medium-margin} * 2))';
    margin: @position-medium-margin;
}

.uk-position-medium.uk-position-center { transform: translate(-50%, -50%) translate(-@position-medium-margin, -@position-medium-margin); }

.uk-position-medium[class*='uk-position-center-left'],
.uk-position-medium[class*='uk-position-center-right'] { transform: translateY(-50%) translateY(-@position-medium-margin); }

.uk-position-medium.uk-position-top-center,
.uk-position-medium.uk-position-bottom-center { transform: translateX(-50%) translateX(-@position-medium-margin); }

/*
 * Large
 */

.uk-position-large {
    max-width: ~'calc(100% - (@{position-large-margin} * 2))';
    margin: @position-large-margin;
}

.uk-position-large.uk-position-center { transform: translate(-50%, -50%) translate(-@position-large-margin, -@position-large-margin); }

.uk-position-large[class*='uk-position-center-left'],
.uk-position-large[class*='uk-position-center-right'] { transform: translateY(-50%) translateY(-@position-large-margin); }

.uk-position-large.uk-position-top-center,
.uk-position-large.uk-position-bottom-center { transform: translateX(-50%) translateX(-@position-large-margin); }

/* Desktop and bigger */
@media (min-width: @breakpoint-large) {

    .uk-position-large {
        max-width: ~'calc(100% - (@{position-large-margin-l} * 2))';
        margin: @position-large-margin-l;
    }

    .uk-position-large.uk-position-center { transform: translate(-50%, -50%) translate(-@position-large-margin-l, -@position-large-margin-l); }

    .uk-position-large[class*='uk-position-center-left'],
    .uk-position-large[class*='uk-position-center-right'] { transform: translateY(-50%) translateY(-@position-large-margin-l); }

    .uk-position-large.uk-position-top-center,
    .uk-position-large.uk-position-bottom-center { transform: translateX(-50%) translateX(-@position-large-margin-l); }

}


// Hooks
// ========================================================================

.hook-position-misc;

.hook-position-misc() {}