弹性布局属性

align-content:定义弹性容器在侧轴方向上有空余空间时每一行元素的布局方式，当弹性容器只有一行时无效；

其中space-between 和 space-around的区别是,space-between是两端对齐,两行元素都分别挨着边框,而space-around是两行元素之间的距离是它们到边缘距离的两倍

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        #container > div {
            display: -webkit-flex;
            //display: -ms-flex;
            display: flex;
            -webkit-flex-flow: row wrap;
            flex-flow: row wrap;
             140px;
            height: 140px;
            background: linear-gradient(-45deg, #78ff8c, #b4ffc8);
        }

        #container > div > div {
            margin: 2px;
             30px;
            min-height: 30px;
            background: linear-gradient(-45deg, #788cff, #b4c8ff);
        }

        #flex-start {
            -webkit-align-content: flex-start;
            align-content: flex-start;
        }

        #center {
            -webkit-align-content: center;
            align-content: center;
        }

        #flex-end {
            -webkit-align-content: flex-end;
            align-content: flex-end;
        }

        #space-between {
            -webkit-align-content: space-between;
            align-content: space-between;
        }

        #space-around {
            -webkit-align-content: space-around;
            align-content: space-around;
        }

        #stretch {
            -webkit-align-content: stretch;
            align-content: stretch;
        }
    </style>
</head>
<body>
<div >
    <p>align-content: flex-start</p>
    <div >
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
    <p>align-content: center</p>
    <div >
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
    <p>align-content: flex-end</p>
    <div >
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
    <p>align-content: space-between</p>
    <div >
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
    <p>align-content: space-around</p>
    <div >
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
    <p>align-content: stretch</p>
    <div >
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
        <div></div>
    </div>
</div>
</body>
</html>

View Code

align-items:以与justify-content相同的方式在侧轴方向上将当前行上的弹性元素对齐;

<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> #container > div { display: -webkit-flex; //display: -ms-flex; display: flex; -webkit-flex-flow: row wrap; flex-flow: row wrap; 140px; height: 140px; background: linear-gradient(-45deg, #78ff8c, #b4ffc8); } #container > div > div { margin: 2px; 30px; min-height: 30px; background: linear-gradient(-45deg, #788cff, #b4c8ff); } #flex-start { -webkit-align-items: flex-start; align-items: flex-start; } #center { -webkit-align-items: center; align-items: center; } #flex-end { -webkit-align-items: flex-end; align-items: flex-end; } #space-between { -webkit-align-items: baseline; align-items: baseline; } #space-around { -webkit-align-items: inherit; align-items: inherit; } #stretch { -webkit-align-items: stretch; align-items: stretch; } </style> </head> <body> <div > <p>align-items: flex-start</p> <div > <div></div> <div></div> <div></div> <div></div> </div> <p>align-items: center</p> <div > <div></div> <div></div> <div></div> <div></div> </div> <p>align-items: flex-end</p> <div > <div></div> <div></div> <div></div> <div></div> </div> <p>align-items: baseline</p> <div > <div></div> <div></div> <div></div> <div></div> </div> <p>align-items: inherit</p> <div > <div></div> <div></div> <div></div> <div></div> </div> <p>align-items: stretch</p> <div > <div></div> <div></div> <div></div> <div></div> </div> </div> </body> </html>

<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> #container{ margin:0 auto; 500px; border:2px solid black; } #container > div { display: flex; font-family: "Courier New", "Lucida Console", monospace; } #container > div > div { 50px; height: 50px; background: linear-gradient(-45deg, #788cff, #b4c8ff); } #flex-start { justify-content: flex-start; } #center { justify-content: center; } #flex-end { justify-content: flex-end; } #space-between { justify-content: space-between; } #space-around { justify-content: space-around; } </style> </head> <body> <div > <p>justify-content: flex-start</p> <div > <div></div> <div></div> <div></div> </div> <p>justify-content: flex-end</p> <div > <div></div> <div></div> <div></div> </div> <p>justify-content: center</p> <div > <div></div> <div></div> <div></div> </div> <p>justify-content: space-between</p> <div > <div></div> <div></div> <div></div> </div> <p>justify-content: space-around</p> <div > <div></div> <div></div> <div></div> </div> </div> </body> </html>

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