Buttons

<button>Button Element</button>
<a class="btn">"btn" Class</a>
<input type="button" value="Inputs" />
<input type="submit" />
<input type="reset" />

Button Element "btn" Class

<button>Default</button>
<button class="primary">Primary</button>
<button class="secondary">Secondary</button>
<button class="success">Success</button>
<button class="warning">Warning</button>
<button class="danger">Danger</button>

Default Primary Secondary Success Warning Danger

<div class="btn-grp">
  <button>Button</button>
  <button>Button</button>
</div>

<button class="no-btn">"no-btn" Class</button>

"no-btn" Class

<button class="no-style">"no-style" Class</button>

"no-style" Class