* {
    margin: 0;
    padding: 0;
}
.content {
    margin: 0 auto;
    margin-top: 90px;
    background: #fff;
    width: 1200px;
    display: flex;
    justify-content: center;
    padding: 100px 0px;
}
.left {
    width: 450px;
    margin-right: 100px;
}
.title {
    margin-top: 30px;
}
.d {
    font-size: 20px;
    font-weight: bold;
    margin-top: 10px;
}
.desc {
    margin-top: 30px;
    font-size: 16px;
    color: #a0a3a8;
    line-height: 30px;
}
.right {
    flex: 1;
}