src/Bundle/CoreBundle/Resources/views/email/_partial/button.html.twig
<tr>
<td>
<!-- BULLETPROOF BUTTON -->
<table width="100%" border="0" cellspacing="0" cellpadding="0" class="mobile-button-container">
<tr>
<td align="center" style="padding: 25px 0 0 0;" class="padding-copy">
<table border="0" cellspacing="0" cellpadding="0" class="responsive-table">
<tr>
<td align="center">
<a href="{{ link }}" target="_blank" style="font-size: 16px; font-family: Helvetica, Arial, sans-serif; font-weight: normal; color: #ffffff; text-decoration: none; background-color: #0BD49E; border-top: 15px solid #0BD49E; border-bottom: 15px solid #0BD49E; border-left: 25px solid #0BD49E; border-right: 25px solid #0BD49E; border-radius: 3px; -webkit-border-radius: 3px; -moz-border-radius: 3px; display: inline-block;" class="mobile-button">
{{ text }}
</a>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>