*
{
    margin: 0;
    padding: 0;
}

html, body
{
    width: 100%;
    height: 100%;
    font-family: Roboto, Consolas, Courier New, Tahoma, Arial;
}

#grid
{
    width: 400px;
    height: 400px;
    border-spacing: 4px;
    position: absolute;
    left: 75px;
    top: 75px;
}

#grid td
{
    border: 1px solid black;
    background-color: rgba(52, 152, 219, 0.6);
}