body {
    background-color: orange;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

div {
    background-color: white;
    width: 600px;
    height: 600px;
    text-align: center;
    border-radius: 15%;
}
h1 {
    font-size: 100px;
}
button {
    background-color: yellow;
    font-size: 50px;
    border-radius: 10px;
}

.userResult {
    font-size: 30px;
}

.computerResult {
    font-size: 30px;
}

.result {
    font-size: 60px;
}