前端速成(9)css

前端速成(9)css

 

 

 前端速成(9)css

 

 

 

 

前端速成(9)css

前端速成(9)css

 

 

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 

<!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>什么是浮动</title>
    <style>
        .left,
        .right {
            float: left;
            width: 200px;
            height: 200px;
            background-color: pink;
        }

        .right {
            float: right;
        }
    </style>
</head>

<body>
    <div class="left">左青龙</div>
    <div class="right">右白虎</div>
</body>

</html>

前端速成(9)css

 

 

 注:两个浮动都是左则连在一起,一左一右则如上图

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 

<!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>浮动特性1</title>
    <style>
        /* 设置了浮动(float)的元素会:
        1. 脱离标准普通流的控制(浮)移动到指定位置(动)。
        2.浮动的盒子不在保留原先的位置 */
        .box1 {
            float: left;
            width: 200px;
            height: 200px;
            background-color: pink;
        }

        .box2 {
            width: 300px;
            height: 300px;
            background-color: rgb(0, 153, 255);
        }
    </style>
</head>

<body>
    <div class="box1">浮动的盒子</div>
    <div class="box2">标准流的盒子</div>
</body>

</html>

前端速成(9)css

 

 

 前端速成(9)css

 

 

 

<!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>浮动元素特性-浮动元素一行显示</title>
    <style>
        div {
            float: left;
            width: 200px;
            height: 200px;
            background-color: pink;
        }

        .two {
            background-color: purple;
            height: 249px;
        }

        .four {
            background-color: skyblue;
        }
    </style>
</head>

<body>
    <div>1</div>
    <div class="two">2</div>
    <div>3</div>
    <div class="four">4</div>
</body>

</html>

前端速成(9)css

 

 

 前端速成(9)css

 

 

 

<!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>浮动的元素具有行内块元素特点</title>
    <style>
        /* 任何元素都可以浮动。不管原先是什么模式的元素,添加浮动之后具有行内块元素相似的特性。 */
        span,
        div {
            float: left;
            width: 200px;
            height: 100px;
            background-color: pink;
        }

        /* 如果行内元素有了浮动,则不需要转换块级\行内块元素就可以直接给高度和宽度 */
        p {
            float: right;
            height: 200px;
            background-color: purple;
        }
    </style>
</head>

<body>
    <span>1</span>
    <span>2</span>

    <div>div</div>
    <p>ppppppp</p>
</body>

</html>

前端速成(9)css

 

 

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 

<!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>浮动元素搭配标准流父盒子1</title>
    <style>
        .box {
            width: 1200px;
            height: 460px;
            background-color: pink;
            margin: 0 auto;
        }

        .left {
            float: left;
            width: 230px;
            height: 460px;
            background-color: purple;
        }

        .right {
            float: left;
            width: 970px;
            height: 460px;
            background-color: skyblue;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="left">左侧</div>
        <div class="right">右侧</div>
    </div>
</body>

</html>

 

前端速成(9)css

前端速成(9)css

 

 前端速成(9)css

 

 

<!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>浮动元素搭配标准流父盒子2</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        li {
            list-style: none;
        }

        .box {
            width: 1226px;
            height: 285px;
            background-color: pink;
            margin: 0 auto;
        }

        .box li {
            width: 296px;
            height: 285px;
            background-color: purple;
            float: left;
            margin-right: 14px;
        }

        /* 这里必须写 .box .last 要注意权重的问题  20 */
        .box .last {
            margin-right: 0;
        }
    </style>
</head>

<body>
    <ul class="box">
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li class="last">4</li>
    </ul>
</body>

</html>

前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 

<!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>浮动布局练习3</title>
    <style>
        .box {
            width: 1226px;
            height: 615px;
            background-color: pink;
            margin: 0 auto;
        }

        .left {
            float: left;
            width: 234px;
            height: 615px;
            background-color: purple;
        }

        .right {
            float: left;
            width: 992px;
            height: 615px;
            background-color: skyblue;
        }

        .right>div {
            float: left;
            width: 234px;
            height: 300px;
            background-color: pink;
            margin-left: 14px;
            margin-bottom: 14px;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="left">左青龙</div>
        <div class="right">
            <div>1</div>
            <div>2</div>
            <div>3</div>
            <div>4</div>
            <div>5</div>
            <div>6</div>
            <div>7</div>
            <div>8</div>
        </div>
    </div>
</body>

</html>

前端速成(9)css

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 前端速成(9)css

 

 

 前端速成(9)css

 

<!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>浮动注意点</title>
    <style>
        /* 如果一个子元素浮动了,尽量其他盒子也浮动,这样保证这些子元素一行显示 */
        .box {
            width: 900px;
            height: 300px;
            background-color: pink;
            margin: 0 auto;
        }

        .damao {
            float: left;
            width: 200px;
            height: 200px;
            background-color: purple;
        }

        .ermao {
            float: left;
            width: 200px;
            height: 150px;
            background-color: red;
        }

        .sanmao {
            width: 300px;
            height: 240px;
            background-color: blue;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="damao">大毛</div>
        <div class="ermao">二毛</div>
        <div class="sanmao">三毛</div>
    </div>
</body>

</html>

前端速成(9)css

 

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

<!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>为什么需要清除浮动</title>
    <style>
        .box {
            /* 清除浮动 */
            overflow: hidden;
            width: 800px;
            border: 1px solid blue;
            margin: 0 auto;
        }

        .damao {
            float: left;
            width: 300px;
            height: 200px;
            background-color: purple;
        }

        .ermao {
            float: left;
            width: 200px;
            height: 200px;
            background-color: pink;
        }

        .footer {
            height: 200px;
            background-color: black;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="damao">大毛</div>
        <div class="ermao">二毛</div>
    </div>
    <div class="footer"></div>

</body>

</html>

 

 前端速成(9)css

 

 

<!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>伪元素清除浮动</title>
    <style>
        .clearfix:after {
            content: "";
            display: block;
            height: 0;
            clear: both;
            visibility: hidden;
        }

        .clearfix {
            /* IE6、7 专有 */
            *zoom: 1;
        }

        .box {
            width: 800px;
            border: 1px solid blue;
            margin: 0 auto;
        }

        .damao {
            float: left;
            width: 300px;
            height: 200px;
            background-color: purple;
        }

        .ermao {
            float: left;
            width: 200px;
            height: 200px;
            background-color: pink;
        }

        .footer {
            height: 200px;
            background-color: black;
        }
    </style>
</head>

<body>
    <div class="box clearfix">
        <div class="damao">大毛</div>
        <div class="ermao">二毛</div>
    </div>
    <div class="footer"></div>

</body>

</html>

前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 

前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 前端速成(9)css

 

 注:PNG格式先将背景关掉,再用切片工具去切;存储时选择 选中的切片;

前端速成(9)css

 

 前端速成(9)css

 

上一篇:管理系统 html 页面框架(头、侧边栏+主体、脚)


下一篇:【三栏布局】