*{margin:0;padding:0;}

body{
    background: rgb(196, 198, 192);
    padding: 25px;
}

#contents{
    display: flex;
    flex-direction: column;
    align-items:center;
    max-width: 700px;
    margin: auto;
}

    #article{
        margin-top: 35px;
    }

        p{
            margin: 20px 0;
            font-size: 18px;
            line-height: 1.5;
        }