定義的css樣式?jīng)]有作用呢_Div+CSS教程

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh" lang="zh"> <head profile="http://www.w3.org/2000/08/w3c-synd/#"> <meta http-equiv="content-language" content="zh-cn" /> <meta http-equiv="content-type" content="text/html;charset=gb2312" /> <title>blueidea</title> <style type="text/css"> /*<![CDATA[*/ #aa ul li {  color:red  } .aa {  color:blue  } /*]]>*/ </style> </head> <body> <div id="aa"> <ul> <li class="aa"> web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全web標(biāo)準(zhǔn)常見(jiàn)問(wèn)題大全 </li> </ul> </div> </body> </html>

模板無(wú)憂_hl5o.cn

這里你無(wú)法用.aa定義到li 遇到這種情況怎么解決呢？答案是提高.aa 的優(yōu)先權(quán) 比如#aa ul li.aa 優(yōu)先權(quán)相關(guān)文章參考-baidu搜索關(guān)鍵詞: CSS的優(yōu)先權(quán)