'rules' Example : rules : Javascript Collections JAVASCRIPT DHTML TUTORIALS

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'rules' Example



    
<html>
<head>
<style type="text/css" id="myStyle">
.rule1 { font-family:Times New Roman; font-size:18pt; color:blue; }
.rule2 { font-family:Verdana; color:red; }
.rule3 { color:red; }
.rule4 { font-family:Verdana; font-size:18pt;}
.rule5 { font-size:18pt; color:red; }
.rule6 { font-size:18pt; }
.rule7 { font-family:Verdana; font-size:18pt;color:red; }

</style></head>
<body>
<button onclick="alert(document.styleSheets(0).rules.length);">
    Get number of rules
</button>