<table class="action" align="center" width="100%" cellpadding="0" cellspacing="0" role="presentation"> <tr> <td align="center"> <table width="100%" border="0" cellpadding="0" cellspacing="0" role="presentation"> <tr> <td align="center"> <table border="0" cellpadding="0" cellspacing="0" role="presentation"> <tr> <td> <a href="{{ $url }}" class="button button-{{ $color ?? 'primary' }}" target="_blank" rel="noopener">{{ $slot }}</a> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table>