node_modules/material-design-lite/src/button/snippets/fab-ripple.html - hores-external - Gitiles

 <!-- FAB button with ripple -->
 <button class="mdl-button mdl-js-button mdl-button--fab mdl-js-ripple-effect">
   <i class="material-icons">add</i>
 </button>
	<!-- FAB button with ripple -->
	<button class="mdl-button mdl-js-button mdl-button--fab mdl-js-ripple-effect">
	<i class="material-icons">add</i>
	</button>