.thumbnail {
    width: 35%;
    cursor: pointer;
    margin-left: 1%;
    filter: grayscale(100%);
    border-radius: 1px;
    transition: transform 0.2s;
  }
  .thumbnail:hover {
    transform: scale(1.05);
  }
  .modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
  }
  .modal img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 1px;
  }
  .close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 30px;
    color: white;
    cursor: pointer;
  }