??? ???
?(.)? ??? ???? ??? ???? ??? ? ????. ?:
.antzone
? ??? ??? ??????. ??? ??? ???? ?????? ?? ???? html ??? ???? ???. ??? ??? ????.
<div id="antzone">< / div>
?? ??? ??? ????.
<style type="text/css">
.antzone{
width:100px;
height:100px;
}
</style>
<div class="antzone"></div>? ??? ?? ??? ????????. ??? ?? ? ??? ??? ? ? ????. ?(.). ??? ??? ?? ??? ???? ??? ?? ????.
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://ask.php.cn/" />
<title>php中文網(wǎng)</title>
<style type="text/css">
.antzone{
width:100px;
height:100px;
border:1px solid black;
}
.a{
color:red;
}
.b{
font-weight:bold;
}
</style>
</head>
<body>
<div class="antzone a b">php中文網(wǎng)</div>
</body>
</html>??? ?? ?? ? ??? ?? ?? ??? ? ????.
??? ???? ?? ???? ?? ??? ?? ????. ?? ?? ???? "antzone" ???? ??? ???? ?? ??? ??? ??? ??? ?? div ??? ?????? ??? ????. ??? ?? ?? antzone???. ???? ????? ??? ?? ??? ? ????.
div.antzone{
color:blue;
}? ??? ??? ?? ? antzone? ???? div ??? ?? ??? ????? ??? ? ????.
? ???? ??? ??? ??? ???? ??? ?? ??? ??? ?? ? ????. ??? ???? ?? ???? ??? ?? ????.
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://ask.php.cn/" />
<title>hp中文網(wǎng)</title>
<style type="text/css">
.antzone{
width:100px;
height:100px;
border:1px solid black;
}
.antzone.a{
color:blue;
}
</style>
</head>
<body>
<div class="antzone a b">php中文網(wǎng)</div>
<div class="antzone b">php中文網(wǎng)</div>
</body>
</html>?? ??? antzone? ???? ?? ??? ??? ?? ? ????.
??? ?? ???? ??? ?? ??? ??? ??? ?????.
.a{
width:100px;
height:100px;
}
.b{
width:100px;
height:100px;
color:red;
}? ??? ??? ?? ??? ? ????.
.a,.b{
width:100px;
height:100px;
}
.b{
color:red;
} 
