.bg_404 {position: relative; background: #fff  no-repeat 50% 50px; text-align: center; padding-top: 135px; min-height: 610px;}
.bg_404.bg_500 {background:  no-repeat 50% 50px;}
.bg_404 h3 {color: #c1272d; font-size: 68px; margin: 60px 0 20px; letter-spacing: 2px; z-index: 10;}
.bg_404 a {display: inline-block; background: #c1272d; font-size: 24px; color: #fff; line-height: 1.5; padding: 0 32px 0 20px; letter-spacing: 1px; text-decoration: none; margin: 0 10px;}


@media only screen and (max-width: 640px) {
.bg_404 {background:  no-repeat 50% 50px; background-size: 100%;}
.bg_404.bg_500 {background:  no-repeat 50% 50px;}
.bg_404 h3 {font-size: 38px; margin-top: 10px;}
.bg_404 a {font-size: 16px; padding: 0 5px;}
}