.header nav{display:none}.content,.footer,.header{text-align:center}.footer,.header{padding:0 50px;font-size:16px;font-weight:700;color:#000;-moz-box-sizing:border-box;box-sizing:border-box;background:#fff;width:100%;line-height:50px}.header.fixed{position:fixed;top:0;left:0}.footer.fixed{position:fixed;bottom:0;left:0}.header a{height:18px;padding:2px;right:0;position:absolute;top:0;margin:15px;width:28px;display:block;z-index:999}.header a:after,.header a:before{height:1px;transition:transform .1s ease;content:"";background:#707070;width:25px;display:block}.header a span{height:2px;margin:6px 0;background:#000;width:25px;display:block}.content{padding:150px 50px 50px}