<ol class="cp_clist">
	<li>css</li>
	<li>html</li>
	<li>copy</li>
	<li>easy</li>
</ol>

ol.cp_clist {
	counter-reset:cp_clist;
	list-style-type:none;
	padding:0;
}
ol.cp_clist5 li {
	position:relative;
	margin: 7px 0 7px 0px;
	padding-left:40px;
	line-height: 30px;
	border: solid 1px #00BCD4;
	border-radius:20px;
	transition: 0.3s;
}
ol.cp_clist li::before {
	position: absolute;
	top: 50%;
	left: 0px;
	counter-increment: cp_clist;
	content: counter(cp_clist);
	padding: 0 0.2em 0 0.2em;
	background: #00BCD4;
	font-weight: bold;
	color: #fff;
	width: 30px;
	height: 30px;
	text-align: center;
	line-height:30px;
	border-radius: 50%;
	transform: translateY(-50%);
}
ol.cp_clist li:hover{
	background: #00BCD4;
	color: #fff;
}
ol.cp_clist li:hover:before {
	background: #fff;
	color: #00BCD4;
}