bootstrap circle button

1  <button type="button" class="btn btn-primary btn-circle btn-sm">Blue</button>

1<button type="button" class="btn btn-info btn-circle">
2  <i class="glyphicon glyphicon-ok"></i>
3</button>

1.btn {
2  display:block;
3  height: 300px;
4  width: 300px;
5  border-radius: 50%;
6  border: 1px solid red;
7  
8}