.resize-line {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 10px;
  opacity: 0;
  cursor: e-resize;
  user-select: none;

  &:hover {
    opacity: 1;
  }

  &::after {
    display: block;
    content: "";
    height: 100%;
    width: 2px;
    margin-left: 10px;
    background-color: #1890ff;
  }


}