<style>

:any-link {
	position: relative;
	margin: 2px;
	padding: 0 4px;
	text-decoration: none;
	color: black;
	transition: color 400ms;
}

:any-link::before {
	position: absolute;
	top: 0;
	right: 50%;
	bottom: 0;
	left: 50%;
	z-index: -1;
	content: "";
	background-color: transparent;
	transition: right 400ms, left 400ms, background-color 400ms;
}

:any-link:hover {
	color: white;
}

:any-link:hover::before {
	right: 0;
	left: 0;
	background-color: hsl(215, 65%, 50%);
}

</style>

<a href="#">Hello World!</a>