body {
    font-family: "Microsoft Yahei";
    font-size: 14px;
    color: #333;
    padding: 0;
    margin: 0;
}

.about {
    width: 100%;
    margin: 0 auto;
    padding: 30px 0;
    font-size: 16px;
    color: #555555;
    line-height: 40px;
    text-align: left;
}

.about img {
    max-width: 100%;
    height: auto;
    vertical-align: top;
}

.main-content-frame {
    position: relative;
    width: 1100px;
    overflow: hidden;
    margin: 26px auto 60px auto;
    overflow: hidden;
}

.content {
    float: left;
    margin-top: 100px;
    margin-bottom: 50px;
    overflow: hidden;
    width: 800px;
}

.content img{
    max-width: 800px;
}