.fullscreen{
    position: relative;
    height: 100%;
    width: 150%;
    box-sizing: content-box;
    
    margin: 0% -20% -23% -35%;
    padding: 0;
}

#Car_1{
    transform-origin: center;
}
#Car_2{
    transform-origin: center;
}
#Car_3{
    opacity: 0;
    transform-origin: center;
}
#Car_4{
    transform-origin: center;
}
#Car_5{
    transform-origin: center;
}
#Lorry_1{
    opacity: 0;
    transform-origin: center;
}
#Lorry_2{
    opacity: 0;
    transform-origin: center;
}

@media only screen and (max-width:923px) {
  .fullscreen{
    position: relative;
    height: 100%;
    width: 100%;
    box-sizing: content-box;
    
    margin: 30% 0% -25% 0%;
    padding: 0;
    }
}