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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <style>
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+ .box{
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+ width: 100%;
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+ /* height: 600px; */
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+ border:2px dashed black;
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+ padding:20px;
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+ box-sizing: border-box;
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+ /* flex 弹性盒子 flex布局 内部元素默认为横向排列(主轴依次排列)*/
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+ /* flex 有两个轴 主轴(默认情况下横向) 交叉轴(默认为纵向) */
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+ display: flex;
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+ /* flex-direction 改变flex 主轴的方向 column改为纵向 */
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+ /* flex-direction: column; */
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+ /* flex-direction: row-reverse; */
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+ /* flex-direction: column-reverse; */
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+ /* justify-content 控制flex元素在主轴上的排列方式 space-between两端对齐 space-around分散对齐 flex-start主轴的开始位置依次排列 flex-end在结束位置依次排列 center居中展示*/
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+ /* justify-content: center; */
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+ /* align-items 控制flex元素在交叉轴上的排列方式 */
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+ /* align-items: center; */
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+
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+ /* flex中如果内部元素所在行容纳不下所有元素那么会对内部flex元素进行压缩 */
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+ /* flex-wrap 控制flex元素是否换行展示 默认为nowrap不换行 wrap换航*/
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+ /* flex-wrap: wrap; */
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+ /* align-content 当flex元素换行后产生多个轴的时候布局方式 属性值等同于 justify-content*/
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+ /* align-content: space-between; */
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+
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+ }
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+ .box .box1{
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+ width: 200px;
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+ height: 200px;
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+ background-color: blue;
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+ color: white;
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+ font-size: 50px;
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+ text-align: center;
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+ line-height: 200px;
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+ font-weight: bold;
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+ margin-left: 5px;
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+ margin-top: 5px;
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+ /* float: left; */
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+ /* flex-grow 放大flex元素 后边的值表示放大比例 相当于把所在空间的剩余位置按照比例划分 */
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+ /* flex-grow: 1; */
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+ /* flex-shrink: 1; */
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+ }
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+ .box1:nth-child(3){
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+ /* flex-grow: 4; */
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+ }
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+ .box1:nth-child(4){
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+ /* flex-grow: 1; */
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+ /* flex:1; */
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+ }
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+ .box1:nth-child(6){
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+ /* flex-shrink 缩小比例 如果元素一行容纳不下flex元素会相应缩小默认都是等比例 也可以flex-shrink设置某一个元素的缩小比例*/
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+ /* flex-shrink: 2; */
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+ }
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+ .box1:nth-child(5){
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+ /* align-self 可以单独设置某一个flex元素的对齐方式 flex-end flex-start center */
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+ /* align-self: flex-end; */
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+ }
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+ .box1:nth-child(8){
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+ /*order 可以控制flex元素的排列顺序 值越小越靠前越大越靠后 */
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+ /* order: -1; */
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+ }
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+ </style>
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+</head>
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+<body>
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+ <div class="box">
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+ <div class="box1">1</div>
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+ <div class="box1">2</div>
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+ <div class="box1">3</div>
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+ <div class="box1">4</div>
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+ <div class="box1">5</div>
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+ <!-- <div class="box1">6</div>
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+ <div class="box1">7</div>
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+ <div class="box1">8</div>
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+ <div class="box1">9</div>
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+ <div class="box1">10</div>
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+ <div class="box1">11</div> -->
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+ </div>
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+</body>
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+</html>
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