File: modules/system/assets/ui/less/icon.mixins.less

// Mixins
// --------------------------

.icon(@icon) {
    .icon-FontAutumn();
    content: @icon;
}

.icon-FontAutumn(@weight: 900) {
    font-family: @fa-style-family;
    font-weight: @weight;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
}

.icon-stack(@width: 2em, @height: 2em, @top-font-size: 1em, @base-font-size: 2em) {
    .icon-stack {
        position: relative;
        display: inline-block;
        width: @width;
        height: @height;
        line-height: @width;
        vertical-align: -35%;
        [class^="icon-"],
        [class*=" icon-"] {
            display: block;
            text-align: center;
            position: absolute;
            width: 100%;
            height: 100%;
            font-size: @top-font-size;
            line-height: inherit;
            *line-height: @height;
        }
        .icon-stack-base {
            font-size: @base-font-size;
            *line-height: @height / @base-font-size;
        }
    }
}

// Scroll markers
// --------------------------------------------------

.vertical-scroll-marker(@color) {
    .scroll-marker {
        position: absolute;
        left: 0;
        width: 100%;
        height: 10px;
        display: none;

        &:after {
            .icon(@ellipsis-h);
            display: block;
            position: absolute;
            left: 50%;
            margin-left: -3px;
            top: 0;
            height: 9px;
            font-size: 10px;
            color: @color;
        }

        &.before {top: 0;}
        &.after {
            bottom: 3px;
            &:after {
                top: 2px;
            }
        }
    }

    &.scroll-before .scroll-marker.before { display: block; }
    &.scroll-after .scroll-marker.after { display: block; }
}

.horizontal-scroll-indicators(@color) {
    &:after, &:before {
        display: none;
        position: absolute;
        top: 50%;
        margin-top: -7px;
        height: 9px;
        font-size: 10px;
        color: @color;
    }

    &:before {
        left: -6px;
        .icon(@angle-left);
    }

    &:after {
        right: -8px;
        .icon(@angle-right);
    }

    &.scroll-before:before { display: block; }
    &.scroll-after:after { display: block; }
}