محرر ويب أونلاين

​x
 
<!DOCTYPE html>
<html>
    <head>
        <style>
.flex-container {
    display: flex;
    flex-direction: column;
    align-content: center;
    flex-wrap: wrap;
    background-color: dodgerblue;
    height: 240px;
}
​
.flex-container > div {
    background-color: #f1f1f1;
    padding: 15px 20px;
    margin: 10px;
    font-size: 18px;
}
        </style>
    </head>
    <body>
        <h1>CSS align-content: center</h1>
        <p>The "align-content: center" property 
            makes all the items aligned at the center.</p>
        <div class="flex-container">
            <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>9</div>
        </div>
    </body>
</html>