body{
    font-family: Arial, sans-serif;
    background:#f4f4f4;
    margin:0;
}
.container{
    max-width:700px;
    margin:60px auto;
    background:white;
    padding:20px;
    border-radius:10px;
    text-align:center;
}
button{
    padding:10px 20px;
    cursor:pointer;
}