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Jquery method to modify element height (height): 1. Use the css() method, syntax "$(selector).css("height","height value")"; 2. Use height() Method, syntax "$(selector).height("height value")".
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
jquery modifies the height of the element
Method 1: Use the css() method
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(document).ready(function() {
$("button").click(function() {
$("img").css("height","200px");
});
});
</script>
</head>
<body>
<img src="img/1.jpg" style="max-width:90%"/ alt="How to modify the height of an element in jquery" ><br>
<button>修改元素的高度</button>
</body>
</html> 
Method 2: Use the height() method
The height() method returns or sets the height of the matching element.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(document).ready(function() {
$("button").click(function() {
$("img").height("200px");
});
});
</script>
</head>
<body>
<img src="img/1.jpg" style="max-width:90%"/ alt="How to modify the height of an element in jquery" ><br>
<button>修改元素的高度</button>
</body>
</html>
[Recommended learning: jQuery video tutorial, web front-end video】
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