.video-preview {
    position: relative;
    display: inline-block;
    cursor: pointer;
    /*border-radius: 12px;*/
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  }
  .video-preview img {
    display: block;
    width: auto;/*480px;*/
    height: auto;
  }
  .video-preview::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.25);
    transition: background .3s;
  }
  .video-preview::after {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 0; height: 0;
    border-style: solid;
    border-width: 18px 0 18px 30px;
    border-color: transparent transparent transparent #fff;
    filter: drop-shadow(0 0 8px rgba(0,0,0,.7));
    transition: transform .3s;
  }
  .video-preview:hover::before { background: rgba(0,0,0,0.45); }
  .video-preview:hover::after  { transform: translate(-50%, -50%) scale(1.15); }
  
  .video-preview::before,
  .video-preview::after,
  .play-button {
    pointer-events: none;
  }