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Handling CSS by using jQuery

, 21 Dec 2011 CPOL
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DescriptionH...

Description

Handle CSS using jQuery/Javascript
Here are two alternatives. In jQuery, you may use attr method to set attribute values of selected elements. In JavaScript, you may use className property to do the same thing.

Code

<html>
<head>
<title>Handle CSS using jQuery/Javascript</title>
<script src="jquery-1.7.1.min.js"></script>
<style type="text/css">
table {background-color:gray;}
div {font-weight:bold;color:#ffffff;height:50px;width:170px;border:solid 2px #ffffff;}
.classBLUE {background-color:#0000ff;color:#ffffff;}
.classRED {background-color:#ff0000;color:#ffffff;}
.classGREEN {background-color:#00cc00;color:#ffffff;}
</style>
<script type="text/javascript">
function setGreenjQuery()
{
    $("#divRGB").attr("class", "classGREEN");
}
function setBluejQuery()
{
    $("#divRGB").attr("class", "classBLUE");
}
function setRedjQuery()
{
    $("#divRGB").attr("class", "classRED");
}
 
function setGreenJs()
{
    document.getElementById("divRGB").className = 'classGREEN';
}
function setBlueJs()
{
    document.getElementById("divRGB").className = 'classBLUE';
}
function setRedJs()
{
    document.getElementById("divRGB").className = 'classRED';
}
</script>
</head>
<body>
<table width="170px">
<tr>
<td colspan="3" align="center">
<div id="divRGB">Handle CSS</div>
</td>
</tr>
<tr>
<td colspan="3" align="center">By jQuery</td>
</tr>
<tr>
<td><input type="button" value="Red" onclick="setRedjQuery()"/></td>
<td><input type="button" value="Green" onclick="setGreenjQuery()"/></td>
<td><input type="button" value="Blue" onclick="setBluejQuery()"/></td>
</tr>
<tr>
<td colspan="3" align="center">By Javascript</td>
</tr>
<tr>
<td><input type="button" value="Red" onclick="setRedJs()"/></td>
<td><input type="button" value="Green" onclick="setGreenJs()"/></td>
<td><input type="button" value="Blue" onclick="setBlueJs()"/></td>
</tr>
</table>
</body>
</html>

Browser Compatibility

I have tested this code in the following Web browsers:
  • Internet Explorer
  • Mozilla Firefox
  • Google Chrome
  • Safari
  • Opera

Further Reading

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

thatraja
Web Developer
India India
Programmer | Dude | ||||||
 
About him & his blog? check out here. Currently he's updating the site, he'll return soon there with more things*.
 
In Codeproject, he posted a blogpost & more than couple of Tip/Tricks, hope he'll write more soon.
 
Favorite techs are MVC, WCF, Mobile, HTML5, CSS3, jQuery, etc.,
 
His hobbies are watching movies, CP, being alone, etc., But now he's working on something*.
 
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Comments and Discussions

 
GeneralThis will break the css if the element has more classes assi... PinmemberDaniel Gidman21-Dec-11 8:27 

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