html, body {
    overflow:hidden;
    margin:0;
    padding:0;;
}
.pp-section {
    height:100%;
    position:absolute;
    width:100%;
    
    backface-visibility: hidden; 
}
.pp-easing {
    -webkit-transition: all 1000ms cubic-bezier(0.550, 0.085, 0.000, 0.990);
    -moz-transition: all 1000ms cubic-bezier(0.550, 0.085, 0.000, 0.990);
    -o-transition: all 1000ms cubic-bezier(0.550, 0.085, 0.000, 0.990);
    transition: all 1000ms cubic-bezier(0.550, 0.085, 0.000, 0.990);
    /* custom */
    -webkit-transition-timing-function: cubic-bezier(0.550, 0.085, 0.000, 0.990);
    -moz-transition-timing-function: cubic-bezier(0.550, 0.085, 0.000, 0.990);
    -o-transition-timing-function: cubic-bezier(0.550, 0.085, 0.000, 0.990);
    transition-timing-function: cubic-bezier(0.550, 0.085, 0.000, 0.990);
    /* custom */
}