.game{
    width: 600px;
    height: 200px;
    border-bottom: 1px solid blue;
    margin: auto;
}

#dino{
    width: 50px;
    height: 50px;
    background-image: url(../img/dino.png);
    background-size: 50px 50px;
    position: relative;
    top: 150px;
}

#cactus{
    width: 20px;
    height: 40px;
    background-image: url(../img/cactus.png);
    background-size: 20px 40px;
    position: relative;
    top: 110px;
    left: 500px;
    animation: cactusMov 3s infinite linear;
}

@keyframes cactusMov{
    0%{
        left: 500px;
    }
    100%{
        left: -20px;
    }
}

.jump{
    animation: jump 1s linear;
    
}

@keyframes jump{
    0%{
        top: 150px;
    }
    30%{
        top: 130px;
    }
    50%{
        top: 80px;
    }
    80%{
        top: 130px;
    }
    100%{
        top: 150px;
    }
}