/* The Modal (background) */
#image-viewer {
    display: none;
    align-items: center;
    justify-content: center;
    position: fixed;
    z-index: 10;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.9);
}
.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    animation-name: zoom;
    animation-duration: 0.6s;
}
@keyframes zoom {
    from {transform:scale(0)} 
    to {transform:scale(1)}
}
#image-viewer .close {
  font-family: Arial, Helvetica, sans-serif;
    position: absolute;
    top: 0rem;
    right: 3rem;
    color: #f1f1f1;
    font-size: 4rem;
    font-weight: bold;
    transition: 0.3s;
}
#image-viewer .close:hover,
#image-viewer .close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

@media only screen and (max-width: 700px){
    .modal-content {
        width: 100vw;
    }
}