body {
    background-color: grey;
    text-align: center;
}

h1,
p {
    color: white;
}

.guess {
    font-size: 3rem;
}

#num {
    height: 40px;
    width: 300px;
}

#num:hover {
    box-shadow: 0 0 8px 2px rgba(0, 0, 0, 0.6);
    /* Black glow */
}

.btn{
    border: none;
    height: 40px;
    width: 200px;
    background-color: black;
    color: white;
    margin-top: 50px;
    border-radius: 10px;
    font-size: 20px;
}

#preGuess,#remGuess{
    color: white;
}

h3{
    color: white;
}

h2{
    color: blue;
}