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|+ Table caption adds the caption "Table caption" to the top of the table. A caption is optional, but recommended according to accessibility guidelines. |-adds a new row, which should be followed by the same number of cells found in other rows. Note, rowspan="2" and colspan="2" can be used on cells to span multiple rows and columns.
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 have the height of 3 rows, but the total is 6 rows. Where is row 4? There is a row 5-4!
A table is an arrangement of columns and rows that organizes and positions data or images. Tables can be created on Wikipedia pages using special wikitext syntax, and many different styles and tricks can be used to customise them.
For columns, one uses |colspan=n | content, whereas for rows, one uses |rowspan=m | content. In the table code, one must leave out the cells that are covered by such a span. The resulting column- and row-counting must fit. Tables can have cells spanning multiple rows, using |rowspan=n. The number of rows must be indicated with each use of rowspan.
This is because the table captions will not be correctly placed in mobile portrait view, or other narrow mobile screens, when the tables wrap. This is especially noticeable if the caption is longer. In that case when one table drops below the other, then the caption will be severely wrapped above only the first column of the table.
Old screen readers, text-to-speech systems and text browsers like Lynx do not support rowspan and colspan. The result can be very confusing for users of these technologies. It's part of the responsibility of the developers of those user agents to provide good table support in their software, and to improve their UAAG conformity.
More template styles for tables: {{sticky header}} - Makes column headers stick to the top of the page while scrolling through table data. {} - moves the sorting arrows under the headers. {{row hover highlight}} - adds row hover highlighting, and option for white background. {{static row numbers}} - adds a column of row numbers to a table.
Tables on the right are autocollapse.Only the green cells should be visible on the left after clicking [hide] ... Colspan header, collapse the other column ...