.hide{opacity:0}.nav-main{border-radius:10px;width:220px;border:1px solid #bbb;background:#FFFEF8;position:relative;top:5px}.nav-arrow-inner{border-radius:5px;border-style:solid;border-width:9px;border-color:transparent;border-top-width:0;border-bottom:9px solid #bbb;width:0;height:0;font-size:0;line-height:0;position:relative;left:110px;top:5px}