flex笔记代码

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            width: 550px;
            height: 400px;
            background-color: orange;
            margin: 0 auto;

            /*  1 开启flex 布局*/
            display: flex;

            /* 2 flex-direction  主轴方向 */ 
            /* row; 默认 从左到右 */
            /* row-reverse 主轴从右到左 */
            /* column 主轴从上到下 */
            /* column-reverse 主轴从下到上*/
            /* flex-direction: column-reverse;   */


            /* 3 justify-content 对齐方式 */
            /* flex-start 默认 */
            /* flex-end  右对齐 */
            /* center 居中对齐 */
            /* space-between 两端对齐 */
            /* space-around 两端距离小 中间距离相等 */
            /* space-evenly 等分对齐 距离间距一样 */
            /* justify-content:space-around; */


            /* 4 align-items 在交叉轴 对齐方式 */
            /* normal 默认 */
            /* flex-start  */
            /* flex-end  一行 底部对齐*/
            /* center 居中对齐 */
            /* baseline 文本基线对齐 以第一行为准 */
            /* align-items: baseline; */


            /* 5  flex-wrap 是否换行*/
            /* wrap 换行 */ 
            /* flex-wrap: wrap; */


            /* 6 flex-flow 缩写属性  flex-direction flex-wrap*/
            /* flex-flow: row wrap; 
            justify-content: space-evenly; */

            /* 7 align-content 在 交叉轴 上的对齐方式(多行) */
            /* flex-start */
            /* flex-end */
            /* center */
            /* space-around */
            /* space-between */
            /* align-content: space-evenly; */


            align-items: center;
        }

        .item{
            width: 100px;
            height: 100px;
            line-height: 100px;
            color: #fff;
            text-align: center;
        }

        .item1{
            background-color: #f00; 
            /* order:10; */
        }
        .item2{
            background-color: #0f0;
            /* order:6;  */
            height: 150px;
        }
        .item3{
            background-color: #00f; 
            align-self: flex-end;
            /* order:100; */
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="item item1">item1</div>
        <div class="item item2">item2</div>
        <div class="item item3">item3</div> 
    </div>
</body>
</html>
posted @ 2021-01-11 14:21  13522679763-任国强  阅读(78)  评论(0)    收藏  举报