日期:2014-05-17 浏览次数:20799 次
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jQuery CSS 操作
jQuery 拥有三种供 CSS 操作的重要函数:
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$(selector).css(name,value)?
$(selector).css({properties})?
$(selector).css(name)?
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CSS 操作实例
函数 css(name,value) 为所有匹配元素的给定 CSS 属性设置值:
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实例
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
    $("p").css("background-color","yellow");
  });
});
</script>
</head>
<body>
<h2>This is a heading</h2>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
<button type="button">Click me</button>
</body>
</html>
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
    $("p").css({"background-color":"yellow","font-size":"200%"});
  });
});
</script>
</head>
<body>
<h2>This is a heading</h2>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
<button type="button">Click me</button>
</body>
</html>
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函数 css(name) 返回指定的 CSS 属性的值:
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("div").click(function(){
  $("#result").html($(this).css("background-color"));
  });
});
</script>
</head>
<body>
<div style="width:100px;height:100px;
background:#ff0000"></div>
<p id="result">Click in the box</p>
</body>
</html>
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
    $("#id100").height("200px");
  });
});
</script>
</head>
<body>
<div id="id100" style="background:yellow;height:100px;width:100px">
HELLO</div>
<div id="id200" style="background:yellow;height:100px;width:100px">
W3SCHOOL</div>
<button type="button">Click me</button>
</body>
</html>
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
  $("#id200").width("300px");
  });
});
</script>
</head>
<body>
<div id="id100" style="background:yellow;height:100px;width:100px">HELLO</div>
<div id="id200"