为什么margin-bottom无效?
.d1{background-color:red;width:100px;height:100px;margin-bottom:100px;}</style></head...
.d1{
background-color: red;
width:100px;
height: 100px;
margin-bottom: 100px;
}
</style>
</head>
<body>
<div class="d1"></div> 展开
background-color: red;
width:100px;
height: 100px;
margin-bottom: 100px;
}
</style>
</head>
<body>
<div class="d1"></div> 展开
展开全部
#maincontent {margin-bottom:8px;width:900px; height:500px;}
#main{float:left; width:664px; height:500px; background: #FFFF99;}
#side {float:right; width:230px; height:500px; background:#FFCC99;}
#main{float:left; width:664px; height:500px; background: #FFFF99;}
#side {float:right; width:230px; height:500px; background:#FFCC99;}
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