*{
    margin: 0;
    padding: 0;
}
.page-content{
    color: #333;
    padding: 20px 15px 108px;
    font-size: 12px;
    line-height: 24px;
    font-family: PingFang-SC , Tahoma, Arial, sans-serif;
}
h1{
    margin-bottom: 16px;
    font-size: 16px;
    text-align: center;
}
h3{
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 20px;
}
h4{
    font-size: 12px;
    line-height: 24px;
}
p{
    margin-bottom: 20px;
}
@media (min-width: 600px) {
    .page-content{
        width: 375px;
        margin: 0 auto;

    }
}