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Conjunctive normal form. In Boolean logic, a formula is in conjunctive normal form ( CNF) or clausal normal form if it is a conjunction of one or more clauses, where a clause is a disjunction of literals; otherwise put, it is a product of sums or an AND of ORs. As a canonical normal form, it is useful in automated theorem proving and circuit ...
A web page is a structured document. The core element is a text file written in the HyperText Markup Language (HTML). This specifies the content of the page, [3] including images and video . Cascading Style Sheets (CSS) specify the presentation of the page. [3] CSS rules can be in separate text files or embedded within the HTML file.
Cross-site request forgery is an example of a confused deputy attack against a web browser because the web browser is tricked into submitting a forged request by a less privileged attacker. CSRF commonly has the following characteristics: It involves sites that rely on a user's identity. It exploits the site's trust in that identity.
CSS does not just apply to visual styling: when spoken out loud by a voice browser, CSS styling can affect speech-rate, stress, richness and even position within a stereophonic image. For these reasons, and in support of a more semantic web, attributes attached to elements within HTML should describe their semantic purpose, rather than merely ...
HTTP ( Hypertext Transfer Protocol) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. [1] HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for ...
e. Meta refresh is a method of instructing a web browser to automatically refresh the current web page or frame after a given time interval, using an HTML meta element with the http-equiv parameter set to " refresh " and a content parameter giving the time interval in seconds. It is also possible to instruct the browser to fetch a different URL ...
Backus–Naur form. In computer science, Backus–Naur form ( / ˌbækəs ˈnaʊər /) (BNF or Backus normal form) is a notation used to describe the syntax of programming languages or other formal languages. It was developed by John Backus and Peter Naur. BNF can be described as a metasyntax notation for context-free grammars.
The CSS term font face is matched with "font"; it is decided by a combination of the font family and the additional properties. In both HTML and CSS, the list is separated by commas. To avoid unexpected results, the last font family on the font list should be one of the generic families which are by default always available. In the absence of a ...