body {
    background-image: url("numbers.jpeg");
    background-size: cover;
    background-repeat: no-repeat;
    min-height: 100vh;
    background-position: center;
    font-family: "Jura", sans-serif;
}
.container {
    display: flex;
    justify-content: center;
}
.game {
    background-color: rgb(216, 232, 211);
    width: 40%;
    margin-top: 50px;
    padding: 20px;
    border: none;
    border-radius: 10px;
    text-align: center;
}
h3 {
    font-size: 20px;
}

#guess {
    padding: 10px;
    width: 40%;
    font-size: 15px;
    border: none;
}

#btn {
    background-color: #2e869f;
    font-size: 15px;
    color: #fff;
    margin-top: 20px;
    padding: 20px;
    border-radius: 15px;
    border: none;
}

@media all and (max-width: 800px) {
    #guess {
        width: 150px;
        padding: 5px;
        font-size: 13px;
    }
}

@media all and (max-width: 500px) {
    #guess {
        width: 80px;
        padding: 5px;
        font-size: 10px;
    }
    h3 {
        font-size: 12px;
    }
    #btn {
        font-size: 10px;
        padding: 10px;
        border-radius: 10px;
    }
}