Make a table with equal column widths

Setting the width for each cell explicitly is the straightforward way to give all columns the same width. For example, the CSS declaration below splits a table of four columns into parts whose widths are the same:
table td {
width: 25%;
However, the approach doesn't work if the table has a dynamic number of columns. Fortunately, we can use the table-layout property to do that. No matter what how many columns the table has, they will have the same widths.
table {
table-layout: fixed;