浮动的代码
- 属性名：float
- 属性值：
| 属性名 | 效果 |
|---|---|
| left | 左浮动 |
| right | 右浮动 |
浮动的特点
- 浮动元素会脱离标准流，在标准流中不占位置（相当于飘起来了）
- 浮动元素比标准流高半个级别，可以覆盖标准流中的元素
- 浮动找浮动，下一个浮动元素会在上一个浮动元素后面左右浮动
- 浮动元素会受到上面元素边界的影响
- 浮动元素有特殊的显示效果
一行可以显示多个 可以设置宽高
- 浮动元素不能通过text-align:center或者margin:0 auto，让浮动元素本身水平居中
网页布局浮动案例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
/* 去除标签默认的margin和padding */
* {
margin: 0;
padding: 0;
}
.header {
height: 40px;
background-color: #333;
}
.nav {
height: 100px;
width: 1226px;
background-color: #ffc0cb;
/* 盒子居中 */
margin: 0 auto;
}
.banner {
height: 460px;
width: 1226px;
background-color: skyblue;
/* 盒子居中 */
margin: 0 auto;
}
.left {
width: 234px;
height: 460px;
background-color: #ffa500;
/* 左浮动, （它向左浮动，右边的盒子才能浮动上来挨着）*/
float: left;
}
.right {
width:992px ;
height: 460px;
background-color: #87ceeb;
/* 右浮动，它在大盒子中浮动在右边 */
float: right;
}
</style>
</head>
<body>
<!-- 网页头部 -->
<div class="header"></div>
<!-- 网页的导肮 -->
<div class="nav"></div>
<!-- 网页轮播图部分 -->
<div class="banner">
<div class="left"></div>
<div class="right"></div>
</div>
</body>
</html>
小米模块案例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box {
width: 1226px;
height: 614px;
margin: 0 auto;
}
.left {
height: 614px;
width: 234px;
background-color: #800080;
float: left;
}
.right1 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 14px 14px 14px;
}
.right2 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 14px 14px 0px;
}
.right3 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 14px 14px 0px;
}
.right4 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 0px 14px 0px;
}
.right5 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 14px 0px 14px;
}
.right6 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 14px 0px 0px;
}
.right7 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 14px 0px 0px;
}
.right8 {
width:234px ;
height: 300px;
background-color: #87ceeb;
float: left;
margin:0px 0px 0px 0px;
}
</style>
</head>
<body>
<div class="box">
<div class="left"></div>
<div class="right1"></div>
<div class="right2"></div>
<div class="right3"></div>
<div class="right4"></div>
<div class="right5"></div>
<div class="right6"></div>
<div class="right7"></div>
<div class="right8"></div>
</div>
</body>
</html>
网页导航案例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
/* 清楚默认 */
* {
margin: 0;
padding: 0;
}
ul li {
float: left;
list-style: none;
}
ul li a {
/* display: inline-block; */
float: left;
width: 80px;
height: 50px;
background-color: #ffc0cb;
text-align: center;
line-height: 50px;
text-decoration: none;
color: #fff;
font-size: 16px;
}
ul li a:hover {
background-color: #008000;
color: white;
}
</style>
</head>
<body>
<ul>
<li><a href="#">新闻1</a></li>
<li><a href="#">新闻2</a></li>
<li><a href="#">新闻3</a></li>
<li><a href="#">新闻4</a></li>
<li><a href="#">新闻5</a></li>
<li><a href="#">新闻6</a></li>
<li><a href="#">新闻7</a></li>
<li><a href="#">新闻8</a></li>
</ul>
</body>
</html>
