第一次敲代码
<!DOCTYPE html>
<html>
<head>
?? ?<meta charset="utf-8">
?? ?<title>田字格</title>
?? ?<style>
?? ??? ?body{
?? ??? ??? ?margin: 0px;
?? ??? ??? ?padding: 0px;
?? ??? ?}
?? ??? ?.uni{
?? ??? ??? ?width: 200px;
?? ??? ??? ?height:200px;
?? ??? ??? ?float: left;
?? ??? ?}
?? ??? ?#first{
?? ??? ??? ?background: red;
?? ??? ?}
?? ??? ?#second{
?? ??? ??? ?background: blue;
?? ??? ?}
?? ??? ?#third{
?? ??? ??? ?background: yellow;
?? ??? ?}
?? ??? ?#forth{
?? ??? ??? ?background: black;
?? ??? ?}
?? ?</style>
</head>
<body>
?? ?<div style="width:400px;height:400px;margin: 0 auto;">
?? ??? ?<div id="first" class="uni"></div>
?? ??? ?<div id="second" class="uni"></div>
?? ??? ?<div id="third" class="uni"></div>
?? ??? ?<div id="forth" class="uni"></div>
?? ?</div>
</body>?? ?
</html>
轉(zhuǎn)載于:https://blog.51cto.com/12155715/1860911
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