????：<!DOCTYPE html><html> <head><meta charset="utf-8"> <title>HELLO HTML</title> </head><body>（元素）<div style="background: red"he
<!DOCTYPE html>
<html> <head>
<meta charset="utf-8">
<title>HELLO HTML</title> </head>
<body>
（元素）
<div style="background: red"height:300px;width:400px;>塊元素</div>塊級標簽
</body>
</html>
?? ???：滅絕師太?? ??：2019-03-21 09:09:16
???? ??：前端開始的學習比較基礎(chǔ),后面的知識點會越來越多,好好加油!