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HTML is a markup language that defines the structure and presentation of web pages. It is one of the core technologies of the World Wide Web, along with CSS and JavaScript. HTML allows creating and formatting text, images, links, tables, forms, and other elements on a web page. Learn more about the history, syntax, and features of HTML on Wikipedia.
XML-class subsets are reported to be expressible using a W-grammar. [12] According to one paper, [13] and probably considered at an information set or parse tree level rather than a character or delimiter level: The class of documents that conform to a given SGML document grammar forms an LL(1) language. ... The SGML document grammars by ...
The reason many digital artists still keep a red, yellow, and blue color wheel handy is because the color schemes and concepts of traditional color theory are based on that model. ... Even though I design mostly for the Web—a medium that's displayed in RGB—I still use red, yellow, and blue as the basis for my color selection.
In HTML and XML, a numeric character reference refers to a character by its Universal Character Set/Unicode code point, and uses the format: &#xhhhh;. or &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form.
Static program analysis tools, such as ESLint and JSLint, scan JavaScript code for conformance to a set of standards and guidelines. Some browsers have built-in profilers. Stand-alone profiling libraries have also been created, such as benchmark.js and jsbench. [110] [111] Many text editors have syntax highlighting support for JavaScript code.
HTML attributes are special words used inside the opening tag to control the element's behaviour. HTML attributes are a modifier of a HTML element type.An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them.
The following list shows a compact version of the colors in the list of colors A–F, G–M, and N–Z articles. The list shows the color swatch and its name. Hovering over the color box shows the HSV, RGB, and #hex values for the color in the tool tip.
URL encoding, officially known as percent-encoding, is a method to encode arbitrary data in a uniform resource identifier (URI) using only the US-ASCII characters legal within a URI.