markdown Bootstrap - 水平Div中心Div

Posted 2021-05-05

# Bootstrap - Center Div in Div Horizontally

Add `mx-auto` to the inner `div`.

```html
<div class="row no-gutters">
  <div class="col-md-12 col-xs-12">
    <div class="separator-white mx-auto"></div>
  </div>
  ...
</div>
```