They're often used for page layout , but the trend now should be towards using style sheets for that. Using tables for layout may create problems when rendering to non-visual media. Also, when used with graphics or pre-formatted text, tables may force users to scroll horizontally.
Tables start with an optional caption followed by one or more rows .
Cells can be merged across rows and columns. The model provides limited support for control over appearance, for example horizontal and vertical alignment of cell contents, border styles and cell margins. By default, the table is rendered without a surrounding border. Row groups may be rendered by user agents in ways that emphasize this structure. When long tables are printed, the head and foot information may be repeated on each page that contains table data.