* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: Arial, sans-serif;
    overflow: hidden;
    transition: background 0.05s;
}

#container {
    text-align: center;
}

h1 {
    font-size: 100px;
    font-weight: bold;
    transition: color 0.05s;
}