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You can add a table using HTML rather than wiki markup, as described at HTML element#Tables. However, HTML tables are discouraged because wikitables are easier to customize and maintain, as described at manual of style on tables. Also, note that the <thead>, <tbody>, <tfoot>, <colgroup>, and <col> elements are not supported in wikitext.
Currently, there does not seem to be a way to copy those tables to a wiki and keep styling such as colors (background or text color). It is possible to convert PDF tables to Excel and keep the colors. Or to HTML tables and keep the colors. But there does not seem to be a way to copy any of those colored tables (PDF, Excel, HTML, etc.) to a wiki.
MediaWiki’s wikitable class (class="wikitable") is designed for straightforward table formatting and enforces certain global styles that make removing borders between adjacent cells challenging even if custom CSS styles attempt to eliminate these borders. Specifically, the class includes:
Note: Wikipedia:HTML 5#Table attributes. CSS to replace obsolete attributes for borders, padding, spacing, etc. Add a border around a table using the CSS property border: thickness style color;, for example border:3px dashed red. This example uses a solid (non-dashed) gray border that is one pixel wide:
Maintain accessibility when creating tables by using specific table tags to help users navigate the data and captions to clearly identify and describe tables. Avoid relying solely on formatting (e.g., background color changes) to convey meaning. Additionally, do not refer to tables in body text as being positioned on the left or right side of a ...
On the edit toolbar, if you click the "table" icon, in editing mode, the software generates a basic table for you. It may not be much, but it's a start if you're creating a table from scratch. You can also use a table to format a multicolumn list. To do so, use the simplified wikicode shown in Figure 14-15. Figure 14-15.
Required for accessibility purposes on data tables, and placed only between the table start and the first table row. ! header cell Optional. Each header cell starts with a new line and a single exclamation mark (!), or several header cells can be placed consecutively on the same line, separated by double exclamation marks (!!). |-new row
Is there any way to freeze the top row of a table, the header info for the columns? So that the top row floats down the screen as user scrolls down the table, that is, so that in a table with many rows the viewer can scroll down through the rows to the desired item and still see the column header info.