body {

    background-image: url(../image/bg1.png);

}



#top a {

    color: #fff;

}



.footer {

    position: fixed;

    bottom: 0;

}



.title {

    color: #fff;

    font-size: 3rem;

    margin-top: 2rem;

}



#video-box {

    width: 50vw;

    height: 50vh;

    left: 25vw;

    top: 25vh;

    position: absolute;

    display: none;

}



#video-box iframe {

    height: 100%;

    width: 100%;

}



.play-img {

    margin-top: 30vh;

    cursor: pointer;

}


@media(min-width:768px){
    #bs-navbar.navbar-collapse .navbar-nav li a {
        color: #fff;
    }

    #bs-navbar .navbar-nav li a.active{
        border-bottom: 3px solid #70bd5c !important;
    }
}


#bs-navbar .navbar-nav li:hover a {
    background-color: transparent !important;
    color: #fff !important;
}

#bs-navbar .navbar-nav li a.active {
    color: #fff;
}


.wrap {
    overflow-y: inherit;
}







@media(max-width:768px) {
    .title {
        font-size: 24px;
    }
    .play-img {
        padding-left: 40px;
    }
    .play-img img{
        width: 40px;
        margin-bottom: 20px;
    }

    #bs-navbar {
        background-color: #fff !important;
    }

    #bs-navbar.collapse .navbar-nav li a.active {
        color: #000;
    }

    #bs-navbar .nav-img-box span {
        color: #000;
    }

}





@media screen and (min-width:960px) and (max-width:1366px) { 

    .footer {
        height: 50px;
        line-height: 50px;
    }

}



@media only screen and (max-width: 768px) {
    #video-box {
    left: 11vw!important;
    width: 77vw!important;
    }
    }