Create CSS Syntax from JavaScript

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var css = 'h1 { background: red; }', head = document.head || document.getElementsByTagName('head')[0], style = document.createElement('style'); style.type = 'text/css'; if (style.styleSheet){ style.styleSheet.cssText = css; } else { style.appendChild(document.createTextNode(css)); } head.appendChild(style); // source: https://stackoverflow.com/a/524721/4324393
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