.modal {
    position:fixed;
    top:10px;
    z-index: 3;
   
}

.imagedisplay { 

    display:block;
    margin: auto;
    width:90%;
    animation: fadeIn 2s;
    -webkit-animation: fadeIn 2s;
    -moz-animation: fadeIn 2s;
    -o-animation: fadeIn 2s;
    -ms-animation: fadeIn 2s;
    cursor:pointer;
}
@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
  }
@media screen and (max-width: 600px) {
    .imagedisplay {
        width: 100%;
    }

  }