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The meta element has two uses: either to emulate the use of an HTTP response header field, or to embed additional metadata within the HTML document. With HTML up to and including HTML 4.01 and XHTML, there were four valid attributes: content, http-equiv, name and scheme. Under HTML 5, charset has been added and scheme has been removed.
The "default" classes also effect the header cells if wikitable class is not used. With the wikitable class header cell content is always centered unless individually adjusted. See template for more info, limitations, examples.
It also avoids using header line breaks <br> which annoy people using screen readers due to the pauses. Em units are good because they increase in size along with the zoom setting. It is important to check if the max-width you have chosen also works correctly in cell phones, and is not breaking words. You may need to increase it a bit.
Placing the shortcut above the section header; a bit confusing when editing; Creating the redirect to the section header, not the shortcut; this would break if the section header was renamed; Placing an {} in the section header that duplicated the shortcut; These fixes are no longer needed, but do not break the current implementation.
For years in HTML, a table has always forced an implicit line-wrap (or line-break). So, to keep a table within a line, the workaround is to put the whole line into a table, then embed a table within a table, using the outer table to force the whole line to stay together. Consider the following examples: Wikicode (showing table forces line-break)
Excel cell shortcut: Add a new line in Excel. Print This Chart. Formatting and editing cells on a Mac. COMMAND. ACTION. Command + B. ... Hide or show the formula bar. Formula shortcuts on a Mac.
The {} template uses HTML, and will size-match a serif font, and will also prevent line-wrap. All templates are sensitive to the = sign, so remember to replace = with {} in template input, or start the input with 1=. Use wiki markup '' and ''' inside the {} template, as well as other HTML entities.
Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and microformats. In 2013, because the W3C HTML Working Group failed to find someone to serve as an editor for the Microdata HTML specification, its development was terminated with a 'Note'.