Por favor, espere...

Media responsive

Link
<a class="btn btn-default" href="#" role="button">Link</a>
<button class="btn btn-default" type="submit">Button</button>
<input class="btn btn-default" type="button" value="Input" />
<input class="btn btn-default" type="submit" value="Submit" />
<button type="button" class="btn btn-link">Link</button>