flex布局

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Web的Flex弹性盒模型</title>
<style>
    body{
        font-family: '微软雅黑';
        /*font-family: cursive, '微软雅黑';*/
        padding: 0;
        margin: 20px 0 40px;

        font-size: 16px;
        background-color: #F9F9F9;
    }
    h1{
        color: #0BF;
        text-indent: 15px;
    }
    h3{
        color: #6D7273;
        text-indent: 15px;
        padding: 10px 0;
        background-color: #fff;
    }
    p{
        margin: 0;
        padding: 0;
        color: #666;
        margin-bottom: 5px;
    }

    .boxes{
        padding: 0 10px;
        overflow: hidden;
        display: -webkit-flex;
        flex-wrap: wrap;
        align-content:flex-start
    }
    .box{
        width: 400px;
        padding: 8px;
        margin-right: 20px;
        margin-bottom: 10px;
        display: inline-block;
        box-shadow: 2px 2px 3px 1px #E0E0E0;
    }

    .boxstyle{
        padding: 8px 0;
    }
    .boxborder{
        border: 1px dashed #B6B6B6;
    }
    .demo{
        color: #fff;
        display: -webkit-flex;
        text-align: center;
    }
    .demo .item{
        line-height: 40px;
        background-color: #ddd;
    }
    .demo .item:nth-child(1){
        background-color: #E46C49;
    }
    .demo .item:nth-child(2){
        background-color: #37B0D3;
    }
    .demo .item:nth-child(3){
        background-color: #68B33D;
    }
    .demo .item:nth-child(4){
        background-color: #E46775;
    }
    .demo .item:nth-child(5){
        background-color: #CFC731;
    }
    .demo .item:nth-child(6){
        background-color: #8370F4;
    }

    .demo .item span{
        display: block;
    }

    .demo2 .item{
        height: 60px;
        width: 150px;
        word-wrap: break-word;
        line-height: 1.5;
    }

    .demo-row{
        flex-direction: row;
    }
    .demo-row-reverse{
        flex-direction: row-reverse;
    }
    .demo-column{
        height: 200px;
        flex-direction: column;
    }
    .demo-column-reverse{
        height: 200px;
        flex-direction: column-reverse;
    }

    .demo-nowrap{
        -webkit-flex-wrap: nowrap;
        width: 400px;
    }
    .demo-wrap{
        -webkit-flex-wrap: wrap;
        width: 400px;
    }
    .demo-wrap-reverse{
        -webkit-flex-wrap: wrap-reverse;
        width: 400px;
    }
    .demo-align-content{
        width: 400px;
        flex-wrap: wrap;
        height:200px;
        border: 1px dashed #B6B6B6;
    }
    .demo-align-content .item:nth-child(1), .demo-align-content .item:nth-child(2), .demo-align-content .item:nth-child(3),
    .demo-align-content .item:nth-child(4), .demo-align-content .item:nth-child(5), .demo-align-content .item:nth-child(6){
        background-color: #717171;
        width: 80px;
        margin: 2px 10px;
    }

</style>
</head>
<body>
    <h1>Web的Flex弹性盒模型</h1>
    <section class="content">

        <h3>[ flex ]</h3>
        <div class="boxes">
            <div class="box">
                <div class="boxstyle">
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo1">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="flex:2">flex: 2;</div>
                    <div class="item" style="flex:1">flex: 1;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>display: -webkit-flex; </p>
                </div>
                <div class="demo demo2 boxborder">
                    <div class="item" style="margin-right:10px;">
                        <span>150px;</span> <span>margin-right:10px;</span></div>
                    <div class="item" style="flex:1">flex: 1;</div>
                    <div class="item" style="margin-left:10px;">
                        <span>150px;</span> <span>margin-left:10px;</span></div>
                </div>
            </div>
        </div>

        <h3>[ flex-direction ]</h3>
        <div class="boxes" style="900px">
            <div class="box">
                <div class="boxstyle">
                    <p>flex-direction: row; /*default*/</p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-row">
                    <div class="item" style="flex:1">flex: 1;</div>
                    <div class="item" style="flex:2">flex: 2;</div>
                    <div class="item" style="flex:3">flex: 3;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>flex-direction: row-reverse;</p>
                    <p>display: -webkit-flex; </p>
                </div>
                <div class="demo demo-row-reverse">
                    <div class="item" style="flex:1">flex: 1;</div>
                    <div class="item" style="flex:2">flex: 2;</div>
                    <div class="item" style="flex:3">flex: 3;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>flex-direction: column;</p>
                    <p>display: -webkit-flex; </p>
                </div>
                <div class="demo demo-column">
                    <div class="item" style="flex:1">flex: 1;</div>
                    <div class="item" style="flex:2">flex: 2;</div>
                    <div class="item" style="flex:3">flex: 3;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>flex-direction: column-reverse;</p>
                    <p>display: -webkit-flex; </p>
                </div>
                <div class="demo demo-column-reverse">
                    <div class="item" style="flex:1">flex: 1;</div>
                    <div class="item" style="flex:2">flex: 2;</div>
                    <div class="item" style="flex:3">flex: 3;</div>
                </div>
            </div>
        </div>

        <h3>[ flex-wrap ]</h3>
        <div class="boxes" style="1310px">
            <div class="box">
                <div class="boxstyle">
                    <p>-webkit-flex-wrap: nowrap; /* default */</p>
                    <p>display: -webkit-flex; </p>
                    <p> 400px</p>
                </div>
                <div class="demo demo-nowrap">
                    <div class="item" style=" 100px">100px;</div>
                    <div class="item" style=" 200px"> 200px;</div>
                    <div class="item" style=" 300px"> 300px;</div>
                </div>
            </div>
            <div class="box">
                <div class="boxstyle">
                    <p>-webkit-flex-wrap: wrap</p>
                    <p>display: -webkit-flex; </p>
                    <p> 400px</p>
                </div>
                <div class="demo demo-wrap boxborder">
                    <div class="item" style=" 100px">100px;</div>
                    <div class="item" style=" 200px"> 200px;</div>
                    <div class="item" style=" 300px"> 300px;</div>
                </div>
            </div>
            <div class="box">
                <div class="boxstyle">
                    <p>-webkit-flex-wrap: wrap-reverse</p>
                    <p>display: -webkit-flex; </p>
                    <p> 400px</p>
                </div>
                <div class="demo demo-wrap-reverse boxborder">
                    <div class="item" style=" 100px">100px;</div>
                    <div class="item" style=" 200px"> 200px;</div>
                    <div class="item" style=" 300px"> 300px;</div>
                </div>
            </div>    
        </div>

        <h3>[ flex-flow ]: flex-direction flex-wrap; /* 自个体会吧 */</h3>

        <h3>[ justify-content ]</h3>
        <div class="boxes" style="1310px;">
            <div class="box">
                <div class="boxstyle">
                    <p>/* 效果如同 float:left; */</p>
                    <p>justify-content: flex-start; /* default */</p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style="justify-content: flex-start;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p><p>/* 效果如同 float:right; */</p></p>
                    <p>justify-content: flex-end;</p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-justify boxborder"  style="justify-content: flex-end;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>/* 第三代水平居中方案 */</p>
                    <p>justify-content: center;</p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-justify-end boxborder" style="justify-content: center;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>justify-content: space-between; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-justify boxborder" style="justify-content: space-between;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>justify-content: space-around; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-justify-end boxborder" style="justify-content: space-around;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>
        </div>

        <h3>[ align-self ]</h3>
        <div class="boxes">
            <div class="box" style="1000px;">
                <div class="boxstyle">
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style=" 1000px; height:200px;">
                    <div class="item" style="200px; align-self:flex-start;">align-self:flex-start;</div>
                    <div class="item" style="200px; align-self:flex-end;">align-self:flex-end;</div>
                    <div class="item" style="200px; align-self:center;">align-self:center;</div>
                    <div class="item" style="200px; align-self:auto;">
                        <span>align-self:auto;</span>
                        <span>/*default */</span>
                    </div>

                    <div class="item" style="200px; align-self:baseline;">align-self:baseline;</div>
                    <div class="item" style="200px; align-self:stretch;">align-self:stretch;</div>
                </div>
            </div>
        </div>

        <h3>[ align-items ]</h3>
        <div class="boxes">
            <div class="box">
                <div class="boxstyle">
                    <p>align-items: flex-start; /* default */</p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style="align-items: flex-start;height:200px;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>align-items: flex-end; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style="align-items: flex-end;height:200px;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>/* 第三代垂直居中 */</p>
                    <p>align-items: center; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style="align-items: center;height:200px;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>align-items: baseline; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style="align-items: baseline;height:200px;">
                    <div class="item" style="100px">100px;</div>
                    <div class="item" style="100px">100px;</div>
                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>align-items: stretch; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo boxborder" style="align-items: stretch;height:200px;">
                    <div class="item" style="100px; height:100px;">height:100px;</div>
                    <div class="item" style="150px; min-height:20px;">min-height:20px;</div>
                    <div class="item" style="150px; max-height:60px;">max-height:60px;</div>
                </div>
            </div>
        </div>


        <h3>[ align-content ]</h3>
        <div class="boxes">
            <div class="box">
                <div class="boxstyle">
                    <p>/* <span style="color:red"> 对比 align-items</span>*/</p>
                    <p>align-items: flex-start</p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-items: flex-start">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>

                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>align-content: flex-start; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-content: flex-start;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>

                </div>
            </div>

            <div class="box">
                <div class="boxstyle">
                    <p>align-content: flex-end; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-content: flex-end;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>

                </div>
            </div>
            <div class="box">
                <div class="boxstyle">
                    <p>align-content: center; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-content: center;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>

                </div>
            </div>
            <div class="box">
                <div class="boxstyle">
                    <p>align-content: space-between; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-content: space-between;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>
                </div>
            </div>
            <div class="box">
                <div class="boxstyle">
                    <p>align-content: space-around; </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-content: space-around;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>

                </div>
            </div>        

            <div class="box">
                <div class="boxstyle">
                    <p>align-content: stretch; /*default*/ </p>
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style="align-content: stretch;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" >d</div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>

                </div>
            </div>    
    
        </div>    

        <h3>[ order ]</h3>
        <div class="boxes">
            <div class="box" style="1000px;">
                <div class="boxstyle">
                    <p>display: -webkit-flex;</p>
                </div>
                <div class="demo demo-align-content" style=" 1000px;height:40px;">
                    <div class="item" >a</div>
                    <div class="item" >b</div>
                    <div class="item" >c</div>
                    <div class="item" style="order:-1; 120px"> d (order:-1) </div>
                    <div class="item" >e</div>
                    <div class="item" >f</div>
                </div>
            </div>
        </div>

    </section>
    

</body>
</html>
View Code
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原文地址：https://www.cnblogs.com/sghy/p/7641632.html