<link rel="stylesheet" rel="nofollow noopener" target="_blank" href="https://codepen.io/arianalynn/pen/xZMWXY.css"/> <!-- Link the css file -->
<button class="button button_3d" data-button="red">BUTTON</button> <!-- Load the desired button style (.button_3d, .button_em, .button_border, .button_shadow) and button color (red, green, blue, purple or none). Special styles include .button_arrow, .button_disabled and .button_group -->