.preview-container {
    width: 100%;
    height: auto;
   }
   
   .preview-image {
    width: 100%;
    height: auto;
   }
   
   .thumbnail-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
   }
   
   .thumbnail-image {
    width: 100px;
    height: 100px;
    cursor: pointer;
    margin: 0 20px;
   }