.box-404{background-color: #ffffff;border: 1px solid #d6d6d6;padding: 25px;margin-top: 20px;margin-bottom: 30px;box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);-webkit-box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);-moz-box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);}.box-404 h1{text-align: center;}.box-404 h1>strong{display: block;text-align: center;font-weight: 800;margin-bottom: 20px;}.box-404 h1>b{display: block;text-align: center;font-size: 20px;font-weight: 400;}.box-404 img{display: block;width: 90%;max-width: 300px;margin: 10px auto 0;}.box-404 a>span{display: block;text-align: center;color: #12b4cd;}