Vorlage:Test/style.css

.csstest {
	margin:0 auto;
	padding:1.8em 2em;
	text-align:center;
	width:50vw;
	min-width:10em;
	max-width:30em;
	background:orange;
	color:#FFF;
	border-radius:.2em;
	
	transition: all 1s ease-in-out;
}

.csstest.csstest.csstest a{
	color:currentColor;
	text-decoration:underline;
}

@media screen and (max-width:1024px){
	.csstest {
		background-color: pink;
		width:100%;
		max-width:none;
	}
}