article,footer,header,nav{display:block;}

body { width:980px; margin:0 auto; border:0px solid #333; background:#ffffff; }

header { width:100%; border-bottom:0px solid #333; background:#ffffff; text-align:center; }

footer{text-align:center; width:980px; height:10px; background:#ECB035; margin-top:10px;  }

#content { position:fixed; top:220px; height:calc(100% - 250px); overflow-y: auto; overflow-x:hidden }

.back { width:100%; text-align:right; }
.back a { text-decoration:none; }