html,
body {
    margin: 0;
    width: 100%;
    height: 100%;
}

table {
    width: calc(100% - 20px);
    height: calc(100vh - 40px);
    margin: 10px;
    table-layout: fixed;
    border-collapse: collapse;
}

td {
    border: solid;
    text-align: center;
    padding: 0;
    height: 33.333%;
    overflow: hidden;
}