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As the first stage of the microformats The microformats process, this page collects Best Practices for Examples Pages of best/common practice for using the table tag to represent structured data.
Thought often abused for layout, the original purpose of HTML tables is to provide a two-dimensional structure for data. The purpose of this exploration is to determine if there are common patterns for annotationg those structures, and (if so) whether there is a need to formalize that as a microformat (a la XOXO 1.0: Extensible Open XHTML Outlines for lists). The working hypothesis is tables typically represent two kinds of data:
- a list of dictionaries (with column headers, and sometimes row headers)
- a grid of numerical data (without any headers, or merely numeric indices)
- Best practices for marking up tabular data (especially for accessibility)
- < th scope=col|row id="name"> for headers
- caption, summary