body {
    margin: 0;
    padding: 0;
    background-color: #333;
    color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    font-family: Arial, sans-serif;
}

#app {
    width: 100%;
}