App下載
實例代碼( Tip: 登錄后體驗更佳 )
<!DOCTYPE html>
<html>
<head>
    <title>W3.CSS(w3cschool.cn)</title>
    <meta name="viewport" content="width=device-width, initial-scale=1" charset="UTF-8">
    <link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
</head>
<body>
<div class="w3-container">
    <h2>灰度效果</h2>
    <p>w3-grayscale 类为元素添加了灰度效果。</p>
    <p><strong>注意： </strong> IE 11和更早版本不支持w3-grayscale类。</p>
    <p>Normal:</p>
    <img src="https://atts.w3cschool.cn/img_snow_wide.jpg" alt="Snow" style="width:300px">
    <p>w3-grayscale-min:</p>
    <img src="https://atts.w3cschool.cn/img_snow_wide.jpg" alt="Snow" class="w3-grayscale-min" style="width:300px">
    <p>w3-grayscale:</p>
    <img src="https://atts.w3cschool.cn/img_snow_wide.jpg" alt="Snow" class="w3-grayscale" style="width:300px">
    <p>w3-grayscale-max (黑白):</p>
    <img src="https://atts.w3cschool.cn/img_snow_wide.jpg" alt="Fjords" class="w3-grayscale-max" style="width:300px">
    <div class="w3-panel w3-red w3-grayscale">
        <p>红色带灰度</p>
    </div>
    <div class="w3-panel w3-blue w3-grayscale">
        <p>蓝色带灰度</p>
    </div>
    <div class="w3-panel w3-green w3-grayscale">
        <p>绿色带灰度</p>
    </div>
</div>
</body>
 
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運行結(jié)果