Circles are used to add visual interest to body text, they often help to represent steps in a process or to accompany a set of discrete points. Circles may contain images, iconography or letters, and are generally central in their column, or used as avatars, left-aligned in lists.
Add any of the below modifier classes to change the size of a circle. Nest circles in links to gain hover states.
{% highlight html %} ...There are two styling variants. If you are using a circle on a white background
use the .circle-inverse class to apply a contrasting background.
The responsive circle variant decreases in size on smaller screen widths,
the md circle takes the size of an sm, and the lg variant takes on the size
of an md. Simply add the .circle-responsive class.