*{
 padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body{

    background: url("../images/body_bg.jpg") no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: end;
    background-position: center;
    background-attachment: fixed;
    background-size: cover;
    line-height: normal;
    overflow-y: scroll;
}
.bottom{
	position:fixed;
	bottom:0;
}
.ro-nav{
    width: 1000px;
    display: flex;
    /*padding-bottom: 5rem;*/
    justify-content: center;
    position: absolute;
    bottom: 1.5rem;
}
.nav-item{
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    width: 200px;
    margin: 0 3rem 5rem 3rem;
    color: #2e585c;
    font-size: .9rem;
    font-weight: bold;
}
.nav-item img{
    width: 200px;
    height: 200px;
        box-shadow: 0 .5rem 1rem rgba(0,0,0,.15)!important;

}
.nav-item span{
    width: 150px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    background: url("../images/link-bg.png") no-repeat;
    background-size: 100% 100%;
    box-shadow: 0 .5rem 1rem rgba(0,0,0,.15)!important;
    border-radius: 20px;
    margin-top: 1rem;
}