.aboutContent{
    width:1200px;
    border-top:2px solid #f8f8f8;
    padding:36px 50px 20px 50px;
}
.aboutContent h1{
    font-size:30px;
    color:#222;
}
.bannerBox{
    margin-top:28px;
}
.introduce{
    padding-top:40px;
}
.introduce p{
    line-height: 30px;
    font-size:16px;
    text-indent: 35px;
}
.aboutContent h2{
    margin:40px 0px 20px 0px;
    font-size:24px;
    color:#222;
}
.size20{
    font-size:18px;
    color:#222;
}
.aboutContent p{
    margin-bottom:15px;
}
.codeImg{
    display: inline-block;
    border:1px solid #e5e5e5;
}