In jquery, you can use the "css()" method to set the width, the syntax is "$(object).css("width","size value")"; the "css()" method sets or returns One or more style attributes of the selected element. This is a best way to set a large number of style attributes on all matching elements.
The operating environment of this tutorial: Windows 7 system, jquery version 1.11.1, Dell G3 computer.
Set the width of the
element:
<!DOCTYPE html>
<html>
<head>
<script src="/jquery/jquery-1.11.1.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("p").css("width","200px");
});
});
</script>
</head>
<body>
<h2>这是标题</h2>
<p style="background-color:#ff0000">这是一个段落。</p>
<p style="background-color:#00ff00">这是一个段落。</p>
<p style="background-color:#0000ff">这是一个段落。</p>
<p>这是一个段落。</p>
<button>设置 p 元素的宽度</button>
</body>
</html>Run result:
javascript video tutorial】
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