Table start with an optional caption followed by one or more rows. Each row consists of one or more cells, which can be either header or data cells.
Cells can overlap across rows and columns.
This can be set either in the TR element for an entire row, or in the TD and TH elements for individual cells. It indicates the suggested width of the table, although the browser can ignore this if it is not possible. This attribute only affects the width of that border, not of the lines between table cells. If the attribute is omitted, no border will be drawn. However, you can increase the whitespace inside a table.