*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #111;
    color: white;
    font-family: arial , sans-serif;
}
h1{
    font-size: 3rem;
}