.ym_bd{width:100%;height:70px;background: #b9b9c544;margin:auto;text-align:center;display:block;overflow:hidden}
.ym_bd li {font-size: 0;height: 70px;line-height: 70px;position: relative;display: inline-block;}
.ym_bd li a {color: #6E6E6E;display: block;padding: 0 25px;font-size: 16px;}
.ym_bd li a:hover {color: #fff;transition: none;background:#026eff;}