body { padding: 0; margin: 0; font-size: 12px; color: #fff; }

.error_500 { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: url(/images/public/statuscode/500_bg.jpg) top center; background-size: cover; text-align: center; }

    .error_500 .con { position: absolute; top: 45%; left: 50%; width: 400px; margin-left: -200px; }
        .error_500 .con p { padding: 0 20px; line-height: 20px; }
    .error_500 img { width: 60%; }
@media(max-width:320px) { 
    .error_500 .con{ width: 320px; margin-left: -160px; }
}