.class
Selects all elements with the given class.
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1.0 新增.class
class (String) A class to search for. An element can have multiple classes; only one of them must match.
For class selectors, jQuery uses JavaScript's native getElementsByClassName() function if the browser supports it.
示例:
Finds the element with the class "myClass".
<!DOCTYPE html>
<html>
<head>
<style>
div,span {
width: 100px;
height: 40px;
float:left;
padding: 10px;
margin: 10px;
background-color: #EEEEEE;
}
</style>
<script src="jquery.min.js"></script>
</head>
<body>
<div class="notMe">div class="notMe"</div>
<div class="myClass">div class="myClass"</div>
<span class="myClass">span class="myClass"</span>
<script>
$(".myClass").css("border","3px solid red");
</script>
</body>
</html>演示:
示例:
Finds the element with both "myclass" and "otherclass" classes.
<!DOCTYPE html>
<html>
<head>
<style>
div,span {
width: 100px;
height: 40px;
float:left;
padding: 10px;
margin: 10px;
background-color: #EEEEEE;
}
</style>
<script src="jquery.min.js"></script>
</head>
<body>
<div class="myclass">div class="notMe"</div>
<div class="myclass otherclass">div class="myClass"</div>
<span class="myclass otherclass">span class="myClass"</span>
<script>
$(".myclass.otherclass").css("border","13px solid red");
</script>
</body>
</html>