html, body {
    margin: 0;
    padding: 0;
    font-family: roboto, sans-serif;
    color: white;
}

a {
    color: #3277B2;
    text-align: center;
    padding: 4px 4px;
    text-decoration: none;
    border-radius: 4px;
}

a:hover {
    color: greenyellow;
}

button {
    cursor: pointer;
}

h1, h2{
    padding: 0;
    margin: 0 auto;
}