想讓每個div塊之間都有間隔 怎么實現？
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>浮動模型</title>
<style type="text/css">
#div3{ ? ?
? ?border:5px pink solid;
? ?width:605px;
? ?height:20px;
? ?inline-block;
? ?background-color:Cyan;
}
#div1,#div2{border:5px yellow solid;
? ?width:300px;
? ?height:80px; ?
? ?inline-block;
? ?background-color:chartreuse;
? ?float:left;}
</style>
</head>
<body>
<div id="div3">導航條</div>
?
<div id="div1">欄目1</div>
<div id="div2">欄目2</div>
</body>
</html>
2016-01-28
<div?id="div3">導航條</div> <div?id="div1">欄目1</div> <div?id="div2">欄目2</div> <style> ????div?{ ????????width:?100%; ????????height:?300px; ????????background:?#f00; ????} ????#div2?{ ????????margin:?10px?0; ????} </style>