html,
body {
    color: yellow;

    background-repeat: no-repeat;
    background-size: cover;
    background-color: black;
    height: 100%;
    width: 100%
}

h1 {
    color: orange;
    text-align: center;
    background-color: green;
    text-decoration: underline;
}

table tr td {
    color: aqua;
    border-style: solid;
    border-color: yellow;
    width: 2%;
    height: 30px;
    background-color: green
}

table {
    text-align: center;
    border-collapse: collapse
}