Bootstrap 5 (update 2021)
Since flexbox is still used the centering methods in Bootstrap 5 work the same way. Columns can be centered using offset, auto-margins or justify-content-center (flexbox).
Demo of the Bootstrap 5 Centering Methods
Bootstrap 4 (original answer)
There are multiple horizontal centering methods in Bootstrap 4...
text-center
for center display:inline
elements
offset-*
or mx-auto
can be used to center column (col-*
)
- or,
justify-content-center
on the row
to center columns (col-*
)
mx-auto
for centering display:block
elements inside d-flex
mx-auto
(auto x-axis margins) will center display:block
or display:flex
elements that have a defined width, (%, vw, px, etc..). Flexbox is used by default on grid columns, so there are also various flexbox centering methods.
Demo of the Bootstrap 4 Centering Methods
In your case, use mx-auto
to center the col-3
and text-center
to center it's content..
<div class="row">
<div class="col-3 mx-auto">
<div class="text-center">
center
</div>
</div>
</div>
https://codeply.com/go/GRUfnxl3Ol
or, using justify-content-center
on flexbox elements (.row
):
<div class="container">
<div class="row justify-content-center">
<div class="col-3 text-center">
center
</div>
</div>
</div>
Also see:
Vertical Align Center in Bootstrap