body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }
    .content {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    @media (max-width: 768px) {
        .box {
            flex: 0 0 calc(50% - 20px);
        }
    }
    @media (max-width: 480px) {
        .box {
            flex: 0 0 100%;
        }
    }