body{
    background:#181818;
    color:white;
    font-family:Arial,Helvetica,sans-serif;
    display:flex;
    justify-content:center;
    align-items:center;
    height:100vh;
    margin:0;
}

.card{
    background:#262626;
    padding:40px;
    border-radius:10px;
    text-align:center;
}

button{
    padding:10px 20px;
    font-size:16px;
    cursor:pointer;
}