.resize-portal{display:flex;height:100%;box-shadow:0 3px 6px 0 rgba(0,0,0,.16);background:#fff}.resizer{position:absolute;left:-8px;width:16px;height:100%;cursor:ew-resize;z-index:1;resize:horizontal}.resizer,.resizer:hover .line{opacity:.6}.resizer .line{display:block;position:absolute;left:6px;width:5px;height:100%;background-color:rgba(122,149,190,.3);opacity:0}.resizer .line:hover{opacity:.6}