Copy codeThe Code is as follows:
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = gb2312"/>
<Title> untitled document </title>
<Script language = "javascript tutorial" src = "Download jquery file. js from the jquery Official Website"> </script>
<Script>
$ (Document). ready (function (){
$ ('# Big_font'). click (function (){
Tutorial ('.news_content').css tutorial ({'font-size': '16px '});
});
$ ('# Mid_font'). click (function (){
Certificate ('.news_content'0000.css ({'font-size': '14px '});
});
$ ('# Sma_font'). click (function (){
Certificate ('.news_content'0000.css ({'font-size': '12px '});
});
});
</Script>
</Head>
<Body>
<Div id = "content">
Font size change and code change in jquery document content
Font size change and code change in jquery document content
Font size change and code change in jquery document content
Font size change and code change in jquery document content
</Div>
</Body>
</Html>