n8n/packages/design-system/src/css/skeleton.scss

.el-skeleton {
  width: 100%;
}

.el-skeleton__item {
  width: 100%;
  height: 16px;
  border-radius: var(--border-radius-large);
  background: var(--color-background-base);
  display: inline-block;
}

.el-skeleton__button {
  width: 162px;
  height: 40px;
  border-radius: 20px;
}

.el-skeleton__p {
  width: 100%;
  height: 16px;
  margin-top: 16px;
}

.el-skeleton__h1 {
  height: 20px;
  margin-top: 14px;
}

.el-skeleton__image {
  width: unset;
  height: 500px !important;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  border-radius: 8px !important;
}

.el-skeleton__image svg {
  width: 22%;
  height: 22%;
  fill: var(--color-info-tint-1);
}

.el-skeleton__first-line,
.el-skeleton__paragraph {
  background: var(--color-background-base);
}

.el-skeleton.is-animated .el-skeleton__item {
  background: -webkit-gradient(linear, left top, right top, color-stop(25%, #f2f2f2), color-stop(37%, #e6e6e6), color-stop(63%, #f2f2f2));
  background: linear-gradient(90deg, #f2f2f2 25%, #e6e6e6 37%, #f2f2f2 63%);
  background-size: 400% 100%;
  -webkit-animation: el-skeleton-loading 1.4s ease infinite;
  animation: el-skeleton-loading 1.4s ease infinite;
}

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

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

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

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