.about-mian-body {
    margin: 0 auto;
    width: 1250px;
    padding: 0;
}

.about-mian-body>div {
    display: inline-block;
    /*zoom: 1; *display: inline;*/
    float: left;
}

.about-list-context {
    margin-left: 50px;
    width: 950px;
    height: 100%;
}