When something like this is in a html content:
```
<a href="hello">
<div>
<b>this</b>
<a href="world">!</a>
</div>
</a>
```
browsers may correct it to:
```
<a href="hello"> </a>
<div>
<a href="hello">
<b>this</b>
</a>
<a href="world">!</a>
</div>
</a>
```
which breaks our CSS.
This change transforms the inner tag in a button tag.
opw-1817668
closes#23373
Nicolas Lempereur
8438470c3a