JavaScript DHTML/Node Operation/addRule
"addRule()" Example
<source lang="html4strict">
<html> <head> <style id="myS">.one { font-family:verdana; font-size:14pt }</style> <script language="JavaScript">
function function1() { document.styleSheets[0].addRule("div", "color:white; background-color:red;"); }
</script> </head> <body>
This is a sample text.
<button onclick="function1()">Add new rule</button> </body> </html>
</source>