#down_container,#container{width:1050px}#container .header_img{width:100%}.custom_nav{width:100%;display:flex;padding:5px 10px;box-sizing:border-box;flex-wrap:nowrap;align-items:center}.custom_nav #nav{width:100%;display:flex;flex-wrap:wrap}#center_container{width:100%;float:unset}#content_container{padding:0 10px}