I still do not know where I should separate my items by grid system and col and when to use d-flex? Imagine I have 4 buttons:
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex justify-content-center">
<button class="btn">First</button>
<button class="btn">second</button>
<button class="btn">Third</button>
<button class="btn">fourth</button>
<button class="btn">Fifth</button>
<button class="btn">six</button>
</div>
I have items in row and center but without padding out space among them, how can I achieve it? And should I use col and row or flex?
