@charset "utf-8";
/* CSS Document */
body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #222;
    color: white;
}
#ball {
    width: 400px;
    height: 400px;
    background: black;
    border-radius: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 50px auto;
    border: 10px solid #479;
}
#answer {
    font-size: 1.2em;
    padding: 20px;
}
button {
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
}
input {
    padding: 10px;
    width: 250px;
    font-size: 1em;
}