body{
    background: #F1F1F1;
}

.main{
    background: #ffffff;
    padding: 10px 20px 20px 20px;
}

.title{
    width: 100%;
    text-align: center;
}

.art-content{
    font-size: 0.8rem;
    line-height: 2rem;
    text-indent: 2rem;
}