.nav_box li a{
    float: left;
    font-size: 1vw;
    color: #9f9d9d;
    margin-left: 7.8vw;
    border-bottom: 2px solid white;
   
}
.monitor { 
    background-color: white;
    
}
.scene_img1 img{
    margin-top: 4.5vw;
   
    width: 58vw;
}
.scene_img2 img{
    padding-bottom: 4.5vw;
   
    width: 58vw;
}