Universal
Selector
The
universal selector is the * character. It selects all tags in an
XHTML MP document. The following XHTML MP/WCSS example demonstrates
the usage of the universal selector in cascading style sheets.
(universalSelectorEg1.xhtml)
<?xml
version="1.0"?>
<!DOCTYPE html PUBLIC
"-//WAPFORUM//DTD XHTML Mobile 1.0//EN"
"http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<style
type="text/css">
* {
color:
blue
}
</style>
<title>WCSS
Tutorial</title>
</head>
<body>
<h1>Table
of Contents</h1>
<hr/>
<p>
WCSS
Tutorial Chapter 1<br/>
WCSS Tutorial Chapter
2<br/>
WCSS Tutorial Chapter
3<br/>
</p>
</body>
</html>
In
the above example, the WAP CSS style rule "color: blue" is
applied to all tags. So, all text (except the title. Note: WAP CSS
styles cannot be applied to the <title> tag) and the horizontal
rule will be rendered in blue color. The screenshots of the example
in mobile phone emulators is shown below.
|
Sony
Ericsson T610
|
Nokia
Mobile Browser 4.0
|
Using
universal selectors in cascading style sheets can slow down the
rendering of a WAP page on some WAP browsers (e.g. Openwave Mobile
Browser 6.x). You should check your WAP page on real mobile devices
to ensure the performance loss is not significant.
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