* {
    margin: auto;
    font-size: 15px;
    font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body {
    background: url(../Image/bg.jpg);
    /*background-attachment: fixed;*/
}

#nav-aboutUs {
    color: black;
}

.aboutUs-title {
    width: 1200px;
    height: 48px;
    background: #d9d9d9;
}

    .aboutUs-title span {
        line-height: 48px;
        font-size: 20px;
        margin-left: 18px;
    }

#aboutUs {
    width: 1150px;
    min-height: 350px;
    margin-top: 15px;
}
#aboutUs img{
    max-width: 1150px;
}