CSS is awesome

by wittnl December 22, 2016

HTML

<style></style>
  <script type="text/javascript">
      var rules = [
              '@keyframes fade { 0% { opacity: 0; } 50% { opacity: 1 } 100% { opacity: 0 } }',
              'body:before { content: "CSS IS AWESOME"; animation: fade 5s infinite } '
      ];
      rules.map(function(rule, i) { document.styleSheets[0].insertRule(rule, i)})
  </script>

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CSS is awesome

HTML

Please Whitelist JSFiddle in your content blocker.

Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console