#top-section { 
 
    height: auto;  
    margin: 0 auto; 
    width: 100%; 
    position: relative; 
    box-shadow: 0 0 50px rgba(0,0,0,0.8);
    padding-bottom: 100px;
    color: white;
}
#middle-section { 
    background: white 50% 0 fixed; 
    height: auto;  
    margin: 0 auto;  
    box-shadow: inset 0 0 2em rgba(0,0,0,0.8);
    padding: 10px 0;
}
#bottom-section { 
    background: url(../images/skyline-cropped-faded.png) 50% 0 fixed; 
    height: auto;
    margin: 0 auto; 
    width: 100%; 
    position: relative; 
    box-shadow: 0 0 50px rgba(0,0,0,0.8);
    padding: 100px 0;
    color: #fff;
}