body {
    background-color: black;
    font-family: Arial, sans-serif;
    color: white;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
    text-align: center;
}

button {
    background-color: green;
    border: 2px solid white;
    color: white;
    margin: 20px;
    width: 90%;
    padding: 2em;
    font-size: 6vw; /* scales with screen width */
    font-weight: bold;
    border-radius: 10px;
    box-sizing: border-box;
}

div {
    width: 100%;
    box-sizing: border-box;
}

a {
    color: white;
    text-decoration: none;
}

tr {
    text-align: center;
}

table {
    width: 90%;
    margin: auto;
    box-sizing: border-box;
}