* Single quotes: use <code> &lsquo; </code> and <code> &rsquo; </code> (like ‘this’), not the plain <code>' </code>symbol.
* Double quotes: use <code> &ldquo; </code> and <code> &rdquo; </code> (like “this”), not the plain <code>" </code> symbol.
* Use double quotes for the first level of quotation, single quotes for the second (nested) level. If punctuation marks need to be placed at the end of a quotation, place them inside or outside but not both. Periods and commas go inside; colons and semicolons go outside; exclamation marks and question marks go inside if they are part of the quotation and otherwise outside.* Use quotes to enclose text whose exact appearance is important; in this case preserve both internal and external punctuation, notwithstanding the above. For example, “Click on the button labelled ‘Click me!’.” If the quoted text is to be typed by the reader, enclose it within “<code>” inside the quotes. Where possible, avoid having URLs appear in text by placing them in external links; when an URL must appear in text, enclose it in “<code>” with no quotes.
* Use <code> &rsquo; </code> and not <code>'</code> for an apostrophe. In typesetting, the apostrophe is identical to the right single quote, and there is no distinct HTML entity for the apostrophe.
* Use <code> &ndash; </code> (–) and not - for numerical and date ranges or elsewhere where endashes are called for.