body{padding:30px 0 100px;background:#f0f0f2}img{max-width:100%;height:auto}.box{margin:auto;width:50%;max-width:800px}.themeimg{border:1px solid #f0f0f2}.themeimg:hover{border:1px solid #000}.leave{display:block;margin:auto;width:fit-content;padding:4px 15px;background:#000;color:#fff;transition:.3s;text-decoration:none}.leave:visited{color:#fff}.leave:hover{color:#f00}@media screen and (max-width:860px){.box{width:90%}}