.skeleton {
    background-color: #e2e5e7;
    background-image: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    background-size: 40px 100%;
    background-repeat: no-repeat;
    background-position: left -40px top 0;
    -webkit-animation: shine 1.5s ease infinite;
            animation: shine 1.5s ease infinite;
}

.skeleton-2 {
    background-color: #e2e5e7;
    background-image: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0));
    background-size: 40px 100%;
    background-repeat: no-repeat;
    background-position: left -40px top 0;
    -webkit-animation: shine 1s ease infinite;
    animation: shine 1s ease infinite;
}

@-webkit-keyframes shine {
  to {
    background-position: right -40px top 0;
  }
}

@keyframes shine {
  to {
    background-position: right -40px top 0;
  }
}

/* HTML: <div class="loader"></div> */
.loader {
  height: 10px;
  aspect-ratio: 2.5;
  --_g: no-repeat radial-gradient(farthest-side,#aaa 90%,#aaa0);
  background:var(--_g), var(--_g), var(--_g), var(--_g);
  background-size: 20% 50%;
  animation: l43 1s infinite linear;
}
@keyframes l43 {
  0%     {background-position: calc(0*100%/3) 50% ,calc(1*100%/3) 50% ,calc(2*100%/3) 50% ,calc(3*100%/3) 50% }
  16.67% {background-position: calc(0*100%/3) 0   ,calc(1*100%/3) 50% ,calc(2*100%/3) 50% ,calc(3*100%/3) 50% }
  33.33% {background-position: calc(0*100%/3) 100%,calc(1*100%/3) 0   ,calc(2*100%/3) 50% ,calc(3*100%/3) 50% }
  50%    {background-position: calc(0*100%/3) 50% ,calc(1*100%/3) 100%,calc(2*100%/3) 0   ,calc(3*100%/3) 50% }
  66.67% {background-position: calc(0*100%/3) 50% ,calc(1*100%/3) 50% ,calc(2*100%/3) 100%,calc(3*100%/3) 0   }
  83.33% {background-position: calc(0*100%/3) 50% ,calc(1*100%/3) 50% ,calc(2*100%/3) 50% ,calc(3*100%/3) 100%}
  100%   {background-position: calc(0*100%/3) 50% ,calc(1*100%/3) 50% ,calc(2*100%/3) 50% ,calc(3*100%/3) 50% }
}