.image-container {
        position: relative;
        display: inline-block;
        background-color: #000;
        margin: 10px;
      }
      
      .image-container:first-child {
  position: sticky;
  top: 0;
  z-index: 1;
  
}

      .image-container img {
        width: 100%;
        height: auto;
        
      }
      .clickable-area {
        position: absolute;
        top: 20%;
        left: 40%;
        width: 20%;
        height: 30%;
        cursor: pointer;
      }
      
        .text-description {
  background-color: #f0f0f0
      ;
  padding: 10px;
  border-radius: 10px; /* curved edges */
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  font-size: 22px;
}

.middle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}


footer {
  background-color: #f0f0f0;
  padding: 10px;
  text-align: center;
  clear: both;
  font-size: 20px;
}