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For table markup, it can be applied to whole tables, table captions, table rows, and individual cells. CSS specificity in relation to content should be considered since applying it to a row could affect all that row's cells and applying it to a table could affect all the table's cells and caption, where styles closer to the content can override ...
If you use tables for two-dimensional graphics you might discover a "feature" in HTML that promotes grey hair. It can affect both rows and columns, depending on the use of either rowspan or colspan. In this 7-row table three cells are assigned a rowspan of 3, but the table totals 6 rows. Where is row 4? There is a row 5-4!
The wikitext must be correct. An incorrect rowspan organization can break sorting, cause weird table formatting, move data to the wrong column, etc. See examples below. When sorted all the rows are filled. Tables without rowspan are much easier to maintain by less experienced editors, and by editors who are stopping by only once to edit the table.
Do not place column headers in the middle of a table to visually separate the table. For example, a screen reader reading the cell "Stuttgart, Germany" might associate the cell with the following headers: "Venue, Representing Soviet Union, Representing Belarus". Three headers are read aloud. The first and the third are correct and expected.
The table's horizontal scroll doesn't work with this template, so wide tables span outside of the main content area making the entire page wider and requiring you to instead horizontally scroll the entire page. Zooming out to see the entire table makes the headers sticky, but also makes the text smaller and less readable the wider the table is.
For example, the discography tables do not use any row headers as the first cell in the rows are dates. In this case, dates would not be relevant as row headers. It's not "1989" that was sold 1.7 million times; it's "Bleach". The albums column should be switched with the dates. It would allow making relevant row headers out of the albums first ...
The two most commonly used classes are "wikitable" and "wikitable sortable"; the latter allows the reader to sort the table by clicking on the header cell of any column. |+ caption Required for accessibility purposes on data tables, and placed only between the table start and the first table row. ! header cell Optional.
The query retrieves all rows from the Book table in which the price column contains a value greater than 100.00. The result is sorted in ascending order by title. The asterisk (*) in the select list indicates that all columns of the Book table should be included in the result set.