CSS gradient border

index.html

<style>
.inner,.wrapper:hover {
	background: #e2017b;
	background: -moz-linear-gradient(top, #e2017b 0%, #640037 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #e2017b), color-stop(100%, #640037) );
	background: -webkit-linear-gradient(top, #e2017b 0%, #640037 100%);
	background: -o-linear-gradient(top, #e2017b 0%, #640037 100%);
	background: -ms-linear-gradient(top, #e2017b 0%, #640037 100%);
	background: linear-gradient(top, #e2017b 0%, #640037 100%);
	filter: progid:DXImageTransform.Microsoft.gradient(  startColorstr='#e2017b', endColorstr='#640037', GradientType=0 );
}

.wrapper,.inner:hover {
	background: #640037;
	background: -moz-linear-gradient(top, #640037 0%, #e2017b 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #640037), color-stop(100%, #e2017b) );
	background: -webkit-linear-gradient(top, #640037 0%, #e2017b 100%);
	background: -o-linear-gradient(top, #640037 0%, #e2017b 100%);
	background: -ms-linear-gradient(top, #640037 0%, #e2017b 100%);
	background: linear-gradient(top, #640037 0%, #e2017b 100%);
	filter: progid:DXImageTransform.Microsoft.gradient(  startColorstr='#640037', endColorstr='#e2017b', GradientType=0 );
}

.wrapper {
	width: 100px;
	height: 30px;
	line-height: 30px;
	color: #fff;
	text-align: center;
	font-size: 16px;
	padding: 1px;
	cursor: pointer;
}

.inner {
	width: 100%;
	height: 100%;
}

.wrapper,.inner {
	border-radius: 5px;
}
</style>

<div class="wrapper">
	<div class="inner">CLICK ME!!!</div>
</div>