Materialize CSS Waves is an external library that we've included to create the ink effect outlined in Material Design.
The waves effect can be applied to any element. To put the waves effect on buttons, you just have to put the class
waves-effect on to the buttons. If you want the waves effect to be white instead, add both
waves-effect waves-light as classes.
<div class="row">
<tr>
<td>waves-light</td>
<td class="center-align">
<a class="waves-effect blue waves-light btn" href="#!">Click Here !</a>
</td>
</tr>
</div>
