テキスト<a href="#" class="cp_textlink07">リンクテキスト-link text-</a>テキスト

.cp_block {
	margin: 5em auto;
	text-align: center;
}
.cp_textlink07 {
	position: relative;
	display: inline-block;
	padding: 0.1em 0.3em;
	text-decoration: none;
	color: #9C27B0;
}
.cp_textlink07::after,
.cp_textlink07::before {
	position: absolute;
	content: '';
	border-radius: 3px;
}
.cp_textlink07::after {
	bottom: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(156,39,176 ,.4);
	transition: all 0.3s ease;
}
.cp_textlink07::before {
	top: -4px;
	bottom: -5px;
	left: -4px;
	right: -5px;
	width: calc(100% + 6px);
	height: calc(100% + 6px);
	border: 1px solid #9C27B0;
	opacity: 0;
	transition: all 0.3s;
}
.cp_textlink07:hover:after {
	background: rgba(156,39,176 ,.2);
}
.cp_textlink07:hover:before {
	top: 2px;
	left: 2px;
	width: calc(100% - 6px);
	height: calc(100% - 6px);
	opacity: 1;
}