body{
margin:?0px;
padding:?0px;
}?
.mydiv{
color:?blue;
border:?1px?solid?red;
margin:?auto?0px?auto?auto;
}????
#a1{
margin:?auto;
width:?100px;
height:?600px;
}
</style>
????
</head>
??
<body>
<div?class="mydiv"?>
????<div?id="a1"><br><br><br><h1>鋤禾</h1>
????<p>鋤禾日當午</p><br>
????<p>鋤禾日當午</p><br>
????<p>鋤禾日當午</p><br>
????<p>鋤禾日當午</p></div>
</div>?????
</body>
怎么邊距全變0了？我只想設右為0而已
錯過了年華
2016-12-06 18:45:32
