ul.modal {
    margin: 0;
    padding: 0;
    text-align: center;
}
ul.modal li {
    display: inline-block;
    position: relative;
}
ul.modal li a{
    text-decoration: none;
    color:black;
}

ul.modal figure{
    padding: 30px;
    margin: auto;  
}

ul.modal figcaption {
    font-size: 50%;
    font-weight: bolder;
    text-align: center;
}

ul.modal li img {
    border: 0;
    margin: 10px;
    width: 100px;
    height: 130px;
    object-fit: cover; 
}

ul.modal a:hover img {
 opacity: 0.6;
 filter: modal(opacity=60);
 -ms-filter: "modal(opacity=60)";
}

/* 表示領域が768px以下の場合 */
@media screen and (max-width: 768px) {

 ul.modal figure{
    padding: 30px;
    margin: auto;  
 }
    

    

}