<a href="#" class="cp_btn">button</a>

a.cp_btn {
	position: relative;
	display: block;
	width: 160px;
	padding: 0.8em;
	text-align: center;
	font-weight: bold;
	text-decoration: none;
	color: #8E24AA;
	text-shadow: 0 0 5px white;
	background: repeating-linear-gradient(-45deg, #CE93D8, #CE93D8 3px,#E1BEE7 3px, #E1BEE7 7px);
	transition: .4s;
	border-radius: 4px;
}
a.cp_btn:hover {
	background: repeating-linear-gradient(-45deg, #CE93D8, #CE93D8 5px,#E1BEE7 5px, #E1BEE7 9px);
	transition: .4s;
}