.a-dict{display:flex;height:100%;overflow:hidden}.a-dict__left{background-color:#fff;border-right:1px solid #ddd;width:240px;z-index:10;box-shadow:0 2px 2px rgba(0,0,0,.1);overflow-y:auto;overflow-x:hidden;height:100%}.a-dict__right{overflow:hidden;flex:1}