postcss-critical-split/testsuite/media-queries-split/input.css

A PostCSS plugin that takes existing CSS files and splits out the annotated critical styles into a seperate file.

body {
	background-color: black;
}

p {
	color: red;
}

a {
 	text-decoration: none;
}

@media screen and (min-width: 400px) {
	a {
		color: #ff0;
		border-bottom: 1px solid #ff0;
		/* critical */
	}
}

@media screen and (min-width: 450px) {
	strong {
		transform: scale(200%);
	}
}

h1 {
	font-size: 3em;
	font-weight: bold;
}