<style>
.box{
width: 600px;
border: 1px solid #000;
}
.box1{
width: 100px;
height: 100px;
background-color: #f00;
float:left;
}
.box2{
width: 150px;
height: 100px;
background-color: #0f0;
}
.box3{
width: 100px;
height: 100px;
background-color: #00f;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
<div class="box2"></div>
<div class="box3"></div>
</div>
</body>
</html>
结果图
注意：事实证明
class属性值为
.box2元素是存在的。下面我们将
calss属性值为
.box2元素设置为左浮动看看有什么不一样的效果代码块
<!DOCTYPE html>
<html lang="en"><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>浮动</title>
<style>
.box{
width: 600px;
border: 1px solid #000;
}
.box1{
width: 100px;
height: 100px;
background-color: #f00;
float:left;
}
.box2{
width: 150px;
height: 100px;
background-color: #0f0;
float: left;
}
.box3{
width: 100px;
height: 100px;
background-color: #00f;
}
</style>
</head>
<body>
<div class="box">
<div class="box1"></div>
<div class="box2"></div>
<div class="box3"></div>
</div>
</body>
</html>
结果图
但是
class属性值为
.box2的元素左浮动并没有左浮动到本身父元素的边缘位置，为什么在
class属性值为
.box1后面呢？因为父元素已经有了浮动的子元素后面的子元素在浮动就浮动到前面浮动的元素之后。现在我们将
class属性值为
.box3
