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console 命令行工具 X clear

                    
>
console
    <div class="box">
        <div class="row1 flex">
            <span class="item"></span>
            <span class="item"></span>            
        </div>
        <div class="row2 flex">
            <span class="item"></span>
            <span class="item"></span>        
        </div>
    </div>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .box {
            display: flex;
            width: 200px;
            height: 200px;
            border: 2px solid #ccc;
            border-radius: 10px;
            padding: 20px;
            justify-content: space-between;
            flex-direction: column;
        }
        
        .item {
            display: block;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: #666;
        }

        .flex {
            display: flex;
        }

        .row1 {
            justify-content: space-between
        }

        .row2 {
            justify-content: space-between
        }