Question

刚刚在网上搜索并提出以下代码..当我在Firefox4和Safari上运行它们时，我似乎没有听到任何声音。我怎么能解决这个问题？

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
@media aural {
h1, h2, h3, 
h4, h5, h6    { voice-family: paul, male; stress: 20; richness: 90 }
h1            { pitch: x-low; pitch-range: 90 }
h2            { pitch: x-low; pitch-range: 80 }
h3            { pitch: low; pitch-range: 70 }
h4            { pitch: medium; pitch-range: 60 }
h5            { pitch: medium; pitch-range: 50 }
h6            { pitch: medium; pitch-range: 40 }
li, dt, dd    { pitch: medium; richness: 60 }
 dt            { stress: 80 }
pre, code, tt { pitch: medium; pitch-range: 0; stress: 0; richness: 80 }
em            { pitch: medium; pitch-range: 60; stress: 60; richness: 50 }
strong        { pitch: medium; pitch-range: 60; stress: 90; richness: 90 }
dfn           { pitch: high; pitch-range: 60; stress: 60 }
s, strike     { richness: 0 }
i             { pitch: medium; pitch-range: 60; stress: 60; richness: 50 }
b             { pitch: medium; pitch-range: 60; stress: 90; richness: 90 }
u             { richness: 0 }
 a:link        { voice-family: harry, male }
 a:visited     { voice-family: betty, female }
a:active      { voice-family: betty, female; pitch-range: 80; pitch: x-high }
}
</style>
</head>

<body>
<p id="a" class="heidi">Testing</p>
 <p id="b" class="peter">Testingb</p>
 <h2>Heading2</h2>
</body>
<html>

Answer 1

Aural样式表供屏幕阅读器阅读（因此您在样式表的开头看到的aural媒体类型），而不是浏览器要呈现。这就是为什么你的浏览器没有说什么。

它们是视障人士的辅助工具，他们需要依靠听力而非视觉来细读网站。

Aural style sheets在CSS2.1规范中有所描述，但已被CSS3 Speech Module取代。不过，目前还不知道这两种规格都有什么样的支持，因为大多数使用中的屏幕阅读器只是读取浏览器呈现和显示的内容。

如何在元素上使用听觉样式表？

1 个答案: