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The difference between the two is that a required field is always displayed; an optional field is not displayed where articles referencing the infobox omit the parameter. If the field is required, the infobox designer should consider whether a default value for the field is useful.
In providing namespaces, XHTML combined with CSS allow authoring communities to easily extend the semantic vocabulary of documents. This accommodates the use of proprietary elements so long as those elements can be presented to the intended audience through complete style sheet definitions (including aural/speech and tactile styles).
Object-oriented CSS (OOCSS) is a CSS methodology developed and promoted by Nicole Sullivan. [ 1 ] [ 2 ] The focus of OOCSS is the idea of treating page elements as objects , giving all these objects classes , treating objects’ classes as single entities in style sheets, and taking it from there.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 March 2025. Content management system This article is about the open-source software (WordPress, WordPress.org). For the commercial blog host, see WordPress.com. WordPress WordPress 6.4 Dashboard Original author(s) Mike Little Matt Mullenweg Developer(s) Community contributors WordPress Foundation ...
The template should have a large, bold title line. Either a table caption or a header can be used for this. It should be named the common name of the article's subject but may contain the full (official) name; this does not need to match the article's Wikipedia title, but falling back to use that (with {{PAGENAMEBASE}}) is usually fine. It ...
A common problem is including material in the infobox which is trivial and would not otherwise be included in the article body: for example, a fictional character's blood type may be referenced in passing in a work, but it is not especially useful to understanding the subject. Infobox templates should not be used for details that are too ...
HTML and DOM viewer and editor is commonly included in the built-in web development tools. The difference between the HTML and DOM viewer, and the view source feature in web browsers is that the HTML and DOM viewer allows you to see the DOM as it was rendered in addition to allowing you to make changes to the HTML and DOM and see the change reflected in the page after the change is made.
Style may be chosen specifically for a piece of content, see e.g., color; scope of parameters. Alternatively, style is specified for CSS selectors, expressed in terms of elements, classes, and ID's. This is done on various levels: Author style sheets, in this order: Note: See WP:CLASS for a list of all the style sheets loaded.