img{
          max-width: 100%;
      }
      
      .gallery{
         padding: 50px 0;
      }
      
      .gallery img{
          
          background-color: #fff;
          padding: 5px;
          margin: 5px;
          width: 30%;
          box-shadow: 0 0 10px rgba(0,0,0,0.3);
          cursor: pointer;
      }
      
#gallery-modal .modal-img{
    width: 100%;
}