.resizer{cursor:col-resize;-webkit-user-select:none;user-select:none;touch-action:none;background-color:#d4d4d4;width:2px;height:100%;transition-property:all;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1);position:absolute;top:0;right:0}.resizer.isResizing{width:3px}