table
{
    margin: auto;
    border-collapse: collapse;
    border: 1px black dashed ;
}
tr
{
    height: 100px;
    border-collapse: collapse;
    border: 1px black dashed ;
}
td
{
    text-align: center;
    width: 100px;
    border-collapse: collapse;
    border: 1px black dashed ;
}