body {
    font-family: Arial, sans-serif;
    text-align: center;
  }
  
  .container {
    display: inline-block;
    margin: 20px;
  }
  
  .thumbnail {
    width: 200px;
    border: 2px solid #ccc;
    cursor: pointer;
  }
  
  .overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
  display: flex;
  padding: 20px;
}
  
  .overlay img {
    max-width: 50%;
    margin-right: 20px;
  }
  
  .overlay p {
    max-width: 50%;
    color: white;
    font-size: 20px;
    align-self: center;
  }
  
  #close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 40px;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
  }