シンプルな造りです
index.html
<divclass="inner"><ul><li><ahref=""class="inview"><imgsrc="img/cat01.jpg"alt=""class="img-zoom"></a></li></ul></div>style.css
img{max-width:100%;}.inner{width:800px;margin:0auto;}.inview{position:relative;overflow:hidden;display:block;}.img-zoom{opacity:1;transition:transform0.3sease;}.img-zoom:hover{transform:scale(1.1);}