隐藏导航栏

hide_scrollbar.css

.overflow {
  /*隐藏滚动条，当IE下溢出，仍然可以滚动*/
  -ms-overflow-style: none;
  /*火狐下隐藏滚动条*/
  overflow-y: auto;
  overflow-y: -moz-scrollbars-none;
  overflow-x: hidden;
  &::-webkit-scrollbar {
    width: 0px;
  }
}