wj-elements/dist/skeleton.css

WebJET Elements is a modern set of user interface tools harnessing the power of web components designed to simplify web application development.

/*
[ Skeleton ]
*/

@keyframes wje-skeleton-shimmer {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

.wje-skeleton {
  cursor: progress;
  user-select: none;
}

.wje-skeleton-overlay {
  display: grid;
}

.wje-skeleton-overlay-content,
.wje-skeleton-overlay-skeleton {
  grid-area: 1 / 1;
}

.wje-skeleton-overlay-skeleton {
  display: none;            /* shown in loading state */
  pointer-events: none;     /* skeleton should not be interactive */
  align-self: stretch;
  justify-self: stretch;
}

.wje-skeleton-overlay-skeleton > .wje-skeleton {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

/* Base "shape" primitives */
.wje-skeleton-head,
.wje-skeleton-circle,
.wje-skeleton-line,
.wje-skeleton-square {
  position: relative;
  overflow: hidden;
  background-color: var(--wje-skeleton-bg);
}

.wje-skeleton-flex-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--wje-skeleton-gap);
}

.wje-skeleton-flex-column {
  display: flex;
  flex-direction: column;
  gap: var(--wje-skeleton-gap);
}

.wje-skeleton-line + .wje-skeleton-line,
.wje-skeleton-line + .wje-skeleton-head,
.wje-skeleton-head + .wje-skeleton-line,
.wje-skeleton-head + .wje-skeleton-head,
.wje-skeleton-circle + .wje-skeleton-line,
.wje-skeleton-line + .wje-skeleton-circle {
  /*margin-top: var(--wje-skeleton-gap);*/
}

.wje-skeleton-head {
  display: block;
  height: var(--wje-skeleton-head-height);
  border-radius: var(--wje-skeleton-radius);
  width: 100%;
}

.wje-skeleton-circle {
  display: block;
  /*flex: 1 1 0;*/
  max-width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
}

.wje-skeleton-line {
  display: block;
  height: var(--wje-skeleton-height);
  border-radius: var(--wje-skeleton-radius);
  width: 100%;
}

.wje-skeleton-square {
  display: block;
  width: 100%;
  height: 150px;
  border-radius: var(--wje-skeleton-radius);
}

/* Shimmer layer */
.wje-skeleton-line::after,
.wje-skeleton-head::after,
.wje-skeleton-circle::after,
.wje-skeleton-square::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  animation: wje-skeleton-shimmer var(--wje-skeleton-duration) infinite;
  background: linear-gradient(90deg, transparent, var(--wje-skeleton-highlight), transparent);
}

/* "Stronger" variant */
.wje-skeleton-strong.wje-skeleton-line,
.wje-skeleton-strong.wje-skeleton-head,
.wje-skeleton-strong.wje-skeleton-circle,
.wje-skeleton-strong.wje-skeleton-square {
  background-color: var(--wje-skeleton-bg-strong);
}

/* Simple layout helpers (opt-in) */
.wje-skeleton .flex { display: flex; }
.wje-skeleton .inline-flex { display: inline-flex; }
.wje-skeleton .align-center { align-items: center; }
.wje-skeleton .align-start { align-items: flex-start; }
.wje-skeleton .align-end { align-items: flex-end; }
.wje-skeleton .justify-start { justify-content: flex-start; }
.wje-skeleton .justify-end { justify-content: flex-end; }
.wje-skeleton .justify-between { justify-content: space-between; }
.wje-skeleton .justify-center { justify-content: center; }
.wje-skeleton .justify-around { justify-content: space-around; }

.wje-skeleton .gap { gap: var(--wje-skeleton-gap); }

.wje-skeleton .w-5 { width: 5%; }
.wje-skeleton .w-10 { width: 10%; }
.wje-skeleton .w-15 { width: 15%; }
.wje-skeleton .w-20 { width: 20%; }
.wje-skeleton .w-25 { width: 25%; }
.wje-skeleton .w-30 { width: 30%; }
.wje-skeleton .w-35 { width: 35%; }
.wje-skeleton .w-40 { width: 40%; }
.wje-skeleton .w-45 { width: 45%; }
.wje-skeleton .w-50 { width: 50%; }
.wje-skeleton .w-55 { width: 55%; }
.wje-skeleton .w-60 { width: 60%; }
.wje-skeleton .w-65 { width: 65%; }
.wje-skeleton .w-70 { width: 70%; }
.wje-skeleton .w-75 { width: 75%; }
.wje-skeleton .w-80 { width: 80%; }
.wje-skeleton .w-85 { width: 85%; }
.wje-skeleton .w-90 { width: 90%; }
.wje-skeleton .w-95 { width: 95%; }
.wje-skeleton .w-100 { width: 100%; }

.wje-skeleton .mb { margin-bottom: var(--wje-spacing-medium); }
.wje-skeleton .mt { margin-top: var(--wje-spacing-medium); }
.wje-skeleton .mr { margin-right: var(--wje-spacing-medium); }
.wje-skeleton .ml { margin-left: var(--wje-spacing-medium); }

.wje-skeleton .mbs { margin-bottom: var(--wje-spacing-x-small); }
.wje-skeleton .mts { margin-top: var(--wje-spacing-x-small); }
.wje-skeleton .mrs { margin-right: var(--wje-spacing-x-small); }
.wje-skeleton .mls { margin-left: var(--wje-spacing-x-small); }

.wje-skeleton .pb { padding-bottom: var(--wje-spacing-medium); }
.wje-skeleton .pt { padding-top: var(--wje-spacing-medium); }
.wje-skeleton .pr { padding-right: var(--wje-spacing-medium); }
.wje-skeleton .pl { padding-left: var(--wje-spacing-medium); }

.wje-skeleton .pbs { padding-bottom: var(--wje-spacing-x-small); }
.wje-skeleton .pts { padding-top: var(--wje-spacing-x-small); }
.wje-skeleton .prs { padding-right: var(--wje-spacing-x-small); }
.wje-skeleton .pls { padding-left: var(--wje-spacing-x-small); }

/* Optional state helpers */
.wje-skeleton-loading .wje-skeleton-overlay-content {
  visibility: hidden;
  pointer-events: none;
}

.wje-skeleton-loading .wje-skeleton-overlay-skeleton {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  .wje-skeleton-line::after,
  .wje-skeleton-head::after,
  .wje-skeleton-circle::after,
  .wje-skeleton-square::after {
    animation: none;
    transform: none;
    opacity: 0.35;
  }
}