#coverflow-main {
    position: absolute;
    padding: 0;
    margin: 0;
    height: 100%;
    width: 100%;
    
    text-align: center;
 
    font-family: sans-serif;
}
 
#coverflow {
    height: 100%;
    width: 100%;
    -webkit-perspective: 600px;
}
 
#coverflow section {
    display: position;
    position: absolute;
    top: 50%;
    left: 50%;
    
    width: 200px;
    height: 150px;
    
    margin-left: -90px;
    margin-top: -50px;
    
    background-color: white;
    background-size: 100%;
    background-repeat: no-repeat;
    
   -webkit-transform-style: preserve-3d;
   -moz-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
        transform-style: preserve-3d;
   
    -webkit-transition: all 300ms ease-in;
     -moz-transition: all 300ms ease-in;
        -ms-transition: all 300ms ease-in;
         -o-transition: all 300ms ease-in;
            transition: all 300ms ease-in; 
}
 
#controls {
    position: absolute;
    width: 100%;
    bottom: 10%;
    z-index: 1;
 
 
    color: #999;
    font-size: 18px;
}
 
#controls a  {
    color: white; 
    cursor: pointer;
}
 
#controls a:hover  {
    color: 66FFFF;
}

.about-not-responsive {
    margin-top: 30px;
}

.about-responsive {
    display: none !important;
    align-content: space-around;
    justify-content: space-around;
}

@media (max-width: 576px) {
    .about-not-responsive {
        display: none !important;
    }

    .about-responsive {
        display: flex !important;
    }

    .slider-responsive {
        display: none !important;
    }

    #coverflow section {
        width: 200px;
    }
}

@media (max-width: 798px) {
    #coverflow section {
        width: 100%;
    }

    .main-slider {
        background-size: cover !important;
    }
}

@media (max-width: 768) {
    .about-not-responsive {
        display: none !important;
    }

    .about-responsive {
        display: flex !important;
    }

    .slider-responsive {
        display: none !important;
    }
}