.title {
    font-size: 20px;
    margin-top: 40px;
    font-family: "yahei";
}

.desc {
    font-size: 16px;
    margin-top: 15px;
    max-width: 800px;
    text-align: center;
    padding: 4px;
    border: 1px solid #ccc;
    color: #5d5d5d;
    border-radius: 4px;
}

p {
    font-size: 16px;
    line-height: 28px;
    color: #333;
    text-align: center;
}

#content {
    max-width: 100%;
    margin: 0 auto;
}

#content img {
    max-width: 100%;
    width: 100%;
    height: auto;
}

@media screen and (max-width:750px){
    img{
        margin: 0px auto;
        width: 90% !important;
    }
}