theme-bootstrap/src/assets/scss/components/_skeleton.scss at main · oruga-ui/theme-bootstrap · GitHub

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/* @docs */
$skeleton-bg-color: $dark-bg-subtle !default;
$skeleton-bg: linear-gradient(
    90deg,
    $skeleton-bg-color 25%,
    rgba($skeleton-bg-color, 0.5) 50%,
    $skeleton-bg-color 75%
) !default;
$skeleton-duration: 1.5s !default;
$skeleton-margin: 0.5rem 0 0 0 !default;
/* @docs */

@keyframes skeleton-loading {
    0% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0 50%;
    }
}

.skeleton {
    --#{$prefix}skeleton-bg: #{$skeleton-bg};
    --#{$prefix}skeleton-duration: #{$skeleton-duration};
    --#{$prefix}skeleton-margin: #{$skeleton-margin};

    display: inline-flex;
    flex-direction: column;
    vertical-align: middle;
    width: 100%;

    .skeleton-item {
        width: 100%;
        background-image: var(--#{$prefix}skeleton-bg);
        margin: var(--#{$prefix}skeleton-margin);
        line-height: 1em;

        &.animated {
            background-size: 400% 100%;
            animation-name: skeleton-loading;
            animation-iteration-count: infinite;
            animation-duration: var(--#{$prefix}skeleton-duration);
        }

        &::after {
            content: "\00a0";
        }

        // size variants
        @each $name, $value in $sizes {
            &.size-#{$name} {
                line-height: $value;
            }
        }
    }
}