亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱

HTML+CSS ?? ??? ??? ?? ????

??? ?? ?? ??? ??? ??? ???? ??? ? ????. ??? ??, ???, ???, ???? ?? ?? ????.

??? ?? ?? ??? ?????.

?? ??? ???? ?? ??? ?????.

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <style type="text/css">
      div{
        width:200px;
        height:200px;
        border:1px solid red;
      }
  </style>
</head>
<body>
    <div id="dv1">php中文網(wǎng)</div>
    <div id="dv2">中華民族偉大復興</div>
</body>
</html>

? div? ??? ????? ? div ??? ??? 30??? ??? ??? CSS ??? ??? ???? ????

#dv2{margin-top:30px;}

? ??? ???? ? div ??? ??? ????.

?? , ???, ???, ??? ?? ??? ??? ?? ??? ??? ???? ? ????

???? ??
||
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <style type="text/css"> div{ width:200px; height:200px; border:1px solid red; } </style> </head> <body> <div id="dv1">php中文網(wǎng)</div> <div id="dv2">中華民族偉大復興</div> </body> </html>