How to center cards in bootstrap 4?

Question

I am using bootstrap 4 alpha 3.
I want to center the card horizontally in the middle across the page.

Preview / link: http://codepen.io/vaibhavs

Answer 1

Update 2018

There is no need for extra CSS, and there are multiple centering methods in Bootstrap 4:

• text-center for center display:inline elements
• mx-auto for centering display:block elements inside display:flex (d-flex)
• offset-* or mx-auto can be used to center grid columns
• or justify-content-center on row to center grid columns

mx-auto (auto x-axis margins) will center inside display:flex elements that have a defined width, (%, vw, px, etc..). Flexbox is used by default on grid columns, so there are also various centering methods.

In your case, you can simply mx-auto to the cards.