*{
    margin: 0;
    padding: 0;
    
}
body{
    overflow: hidden;
}
.sky {
    height:100vh ;
    width: 100%;
    position: absolute;
    background-image: url(background.jpg);
    background-repeat: no-repeat;
}


.trees{
    height: 100vh;
    width: 100%;
    background-image: url(trees.png);
    background-size: cover;
    position: absolute;
    top: -144px;
}

.tracks{
    height: 60vh;
    width: 800vw;
    background-image: url(track.png);
    
    position: absolute;
    top: 70vh;
    background-repeat: repeat-x;
    animation: carMove linear 8s infinite;
}

.car{
    height: 100px;
    width: 380px;
    background-image: url(car_body.png);
    background-size: cover;
    background-repeat: no-repeat;
    position: absolute;
    left: 444px;
    bottom: 30vh;
    animation:shake linear 3s infinite ;

    
}

.wheel1 img{
    width: 77px;
    position: relative;
    top: 40px;
    left: 42px;
    animation: wheelRotation linear .6s infinite; 

}
.wheel2 img{
     width: 77px;
    position: relative;
    top: -39px;
    left: 235px;
    animation: wheelRotation linear .6s infinite; 



}

@keyframes wheelRotation
{
    100% {
        transform: rotate(360deg);
    }
}
@keyframes carMove
{
    100% {
        transform: translatex(-500vw);
    }
}

@keyframes shake
{
    0% {
        transform: translatey(-5px);
    }
    50%{
        transform: translatey(5px);
    }
    100%{
        transform: translatey(-5px);
    }
}