Polka dot
{"view":"split","fontsize":"100","seethrough":"","prefixfree":"1","page":"css"}
// alert('Hello world!');
<!-- content to be placed inside <body>…</body> -->
/**
* Polka dot
*/
background: linear-gradient(90deg, yellow, red);
background-image: radial-gradient(tan 20%, transparent 0),
radial-gradient(tan 20%, transparent 0);
background-size: 30px 30px;
background-position: 0 0, 15px 15px;