jQuery CSS ??

jQuery? ???? CSS ??? ?? ??? ? ????. CSS ??? ??

jQuery ?? CSS

jQuery?? CSS ??? ???? ?? ?? ??? ????. ?? ??? ?????.

addClass() - ??? ??? ?? ??? ??? ??
removeClass() - ??? ???? ?? ??? ??? ??
toggleClass() - ??/ ??? ??? ??? ??
css() - ??? ?? ?? ?? ??

jQuery addClass() ???

?? ???? ?? ??? ???? ???? ??? ?????. ??? ??? ?????. ??, ???? ??? ? ?? ??? ??? ?? ????.

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
    </script>
    <script>
        $(document).ready(function(){
            $("button").click(function(){
                $("h1,p").addClass("blue");
                $("div").addClass("important");
            });
        });
    </script>
    <style type="text/css">
        .important
        {
            font-weight:bold;
            font-size:xx-large;
        }
        .blue
        {
            color:blue;
        }
    </style>
</head>
<body>
<h1>標(biāo)題 1</h1>
<h2>標(biāo)題 2</h2>
<p>這是一個(gè)段落。</p>
<p>這是另外一個(gè)段落。</p>
<div>這是一些重要的文本!</div>
<br>
<button>為元素添加 class</button>
</body>
</html>

????? ???? ??? ???

addClass() ????? ?? ???? ??? ?? ????.

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
    </script>
    <script>
        $(document).ready(function(){
            $("button").click(function(){
                $("#div1").addClass("important blue");
            });
        });
    </script>
    <style type="text/css">
        .important
        {
            font-weight:bold;
            font-size:xx-large;
        }
        .blue
        {
            color:blue;
        }
    </style>
</head>
<body>
<div id="div1">這是一些文本。</div>
<div id="div2">這是一些文本。</div>
<br>
<button>為第一個(gè) div 元素添加類</button>
</body>
</html>

????? ???? ??? ???

jquery removeclass () ??? ?? ??? ??? ??? ??? ?? ??? ???? ??? ?????. jQueryggleClass() ???

?? ????? jQuery?ggleClass() ???? ???? ??? ?????. ? ???? ??? ??? ???? ??/???? ?? ??? ?????. Instance

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
    </script>
    <script>
        $(document).ready(function(){
            $("button").click(function(){
                $("h1,h2,p").removeClass("blue");
            });
        });
    </script>
    <style type="text/css">
        .important
        {
            font-weight:bold;
            font-size:xx-large;
        }
        .blue
        {
            color:blue;
        }
    </style>
</head>
<body>
<h1 class="blue">標(biāo)題 1</h1>
<h2 class="blue">標(biāo)題 2</h2>
<p class="blue">這是一個(gè)段落。</p>
<p>這是另外一個(gè)段落。</p>
<br>
<button>從元素中移除 class</button>
</body>
</html>

????? ???? ??? ???

???? ??

??? ??

<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("button").click(function(){ $("h1,h2,p").toggleClass("blue"); }); }); </script> <style type="text/css"> .blue { color:blue; } </style> </head> <body> <h1 class="blue">標(biāo)題 1</h1> <h2 >標(biāo)題 2</h2> <p class="blue">這是一個(gè)段落。</p> <p>這是另外一個(gè)段落。</p> <br> <button>切換 class</button> </body> </html>

?????? ???

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