App下載
實(shí)例代碼( Tip: 登錄后體驗(yàn)更佳 )
<!DOCTYPE html>
<html>
<head>
    <title>W3.CSS(w3cschool.cn)</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
</head>
<body>
<div class="w3-section">
    <button class="w3-button w3-block w3-border"><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">纽扣</font></font></button>
</div>
<div class="w3-section">
    <button class="w3-button w3-block w3-teal"><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">纽扣</font></font></button>
</div>
<div class="w3-bar w3-black">
    <button class="w3-bar-item w3-button" style="width:33.3%"><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">一</font></font></button>
    <button class="w3-bar-item w3-button" style="width:33.3%"><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">二</font></font></button>
    <button class="w3-bar-item w3-button" style="width:33.4%"><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">三</font></font></button>
</div>
</body>
</html>
 
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