This is my website html:
<div class="row">
<a href="#" class="btn btn-danger btn-lg">Text
</a>
</div>
Do I have to change my html? or add a class in my css?
Little changes in your html structure are required
<div class="row">
<div class="col">
<a href="#" class="btn btn-danger btn-lg">Text
</a>
</div>
</div>