.navbar{
    margin: 0 20%;
}
.navbar-brand img{
    margin-left: -20px;
}
.bg-light {
    background-color: #ffffff!important;
}
.content{
        margin: 0 20%;
}
.list{
        text-align: center;
        margin: 60px 0;
}
.list-title{
        font-size: 1.4em;
        font-weight: bolder;
}
.list-img-bx{
        margin: 20px 0;
}
.list-img{
        width: 200px;
}
.list-content-title{
        font-size: 1.1em;
        font-weight: bold;
}
.list-content-bx{
        margin: 20px 0;
}
.yjc-btn{
        margin-top: 45px;
}
.hp7-img{
    width: 50px;
}
.hp7{
    padding: 30px 0;
}
.footer-bx{
    padding-top: 30px;
    padding-left: 20%;
    padding-right: 20%;
    margin-left: -15px;
    margin-right: -15px;
    background-color: #575757;
    color: #fff;
}
.footer-bx .about-us-title{
    font-size: 1.1em;
    font-weight: bold;
    margin: 15px 0;
}
.footer{
        color: #8e8e8e;
        font-size: 12px;
        text-align: center;
}