テキスト<a href="#" class="cp_textlink06">リンクテキスト-link text-</a>テキスト

.cp_block {
	margin: 5em auto;
	text-align: center;
}
.cp_textlink06 {
	position: relative;
	display: inline-block;
	padding: 0.1em 0.3em;
	text-decoration: none;
	color: #FF8F00;
}
.cp_textlink06:after {
	position: absolute;
	bottom: 50%;
	left: 0;
	width: 100%;
	height: 2px;
	content: '';
	transition: all 0.3s ease;
	opacity: 0;
	border-radius: 10px;
	background-color: #FF8F00;
}
.cp_textlink06:hover:after {
	bottom: 0;
	height: 100%;
	opacity: 0.3;
}