<!DOCTYPE html>
<html lang="en-US">
<head>
<link rel="stylesheet" title="blue" type="text/css" href="/blue.css">
<link rel="stylesheet" title="brown" type="text/css" href="/brown.css">
</head>
<body>
<p>Click on the button to display the css file "blue.css"</p>
<button onclick="myFunction()">Click Me</button>
<p id="point"></p>
<p><strong>Note</strong>: Swap the two css link (inside <head> tag) and click 'Run' button and try again.</p>
<script>
var x = document.getElementById("point");
var css1 = document.styleSheets[0];
var len = css1.cssRules.length;
var txt = "";
function myFunction(){
for(var i=0; i<len; i++){
txt += css1.cssRules[i].cssText + "<br>";
}
x.innerHTML = txt;
}
</script>
<p><strong>Note</strong>: The CSS files used in the following examples are <a href="/blue.css" target="_blank">blue.css</a> and <a href="/brown.css" target="_blank">brown.css</a></p> </body>
</html>