.thumbnail {
      width: 150px;
      cursor: pointer;
      margin: 10px;
    }

    .overlay {
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.8);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 1000;
    }

    .overlay img {
      max-width: 90%;
      max-height: 90%;
      box-shadow: 0 0 20px #fff;
    }

    .overlay:target {
      display: flex;
    }

    .close-btn {
      position: absolute;
      top: 20px;
      right: 30px;
      font-size: 30px;
      color: white;
      text-decoration: none;
    }


    
			table, tr, td, th, thead {
				border: 1px solid;	
			border-collapse: collapse;
		}
		thead th{
    position: sticky;
    top: 0;
    background-color: #d3d9fd;
		text-align: center;
    }