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A reset stylesheet (or CSS reset) is a collection of CSS rules used to clear the browser's default formatting of HTML elements, removing potential inconsistencies between different browsers. It also prevents developers from unknowingly relying on the browser default styling and force them to be explicit about the styling they want to apply on the page.
Each browser has different default settings for styling different HTML elements, often differing from the World Wide Web Consortium recommendations for styling elements. For example, the color for link text and spacing definitions for specific items are defined differently by many browsers by default. These basic details may vary greatly from browser to browser, sometimes even varying between different versions of a browser. [1] These default styles used in combination with the author defined rules may have unforeseen effects on the appearance of the website.
With the help of a style sheet reset, these browser styles can be removed. The styles used by the developer are ideally interpreted consistently by all browsers.
The first style sheet resets were released around 2004, [2] and many consisted of resetting the margins and padding of all elements:
*{padding:0;margin:0;}
However, the first reset style sheet, created in 2004 by Tantek Çelik, included additional features such as setting all font sizes to 1em
and removing link underlines and borders. [3]
This process has gradually been refined by various developers, so that only some elements are reset to their basic appearance.
strong
element, which features highlighted or bold text, often has no difference in shape and color to the rest of the text. The developer therefore has to reintroduce some removed formatting for the HTML tags they wish to use in a webpage.A CSS reset is a different concept from a CSS framework. A reset style sheet is only used to reset basic formatting. In contrast, a CSS framework, which typically include pre-made style definitions for often-needed UI elements or a grid system, is used to speed up the development process of a website. However, a CSS reset is often part of a CSS framework.
Dynamic HTML, or DHTML, is a term which was used by some browser vendors to describe the combination of HTML, style sheets and client-side scripts that enabled the creation of interactive and animated documents. The application of DHTML was introduced by Microsoft with the release of Internet Explorer 4 in 1997.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
An HTML element is a type of HTML document component, one of several types of HTML nodes. The first used version of HTML was written by Tim Berners-Lee in 1993 and there have since been many versions of HTML. The current de facto standard is governed by the industry group WHATWG and is known as the HTML Living Standard.
The font family selection in (X)HTML, CSS, and derived systems specifies a list of prioritized fonts and generic family names; in conjunction with correlating font properties, this list determines the particular font face used to render characters. The family selection is available in two forms: in the deprecated (X)HTML <font>...</font>
element with its face
attribute, and in the CSS font-family
property.
In the field of computing and web design, a mouseover, also called a hover effect, is a graphical control element. This element responds when a user moves their mouse pointer over a designated area. This area can be a button, image, or hyperlink. This simple action can trigger different responses. The element's color or appearance can change. Additional information or interactive content can be displayed. The mouseover effect is an essential part of user interaction. It adds layers of interactivity and responsiveness to websites and applications.
JavaScript Style Sheets (JSSS) was a stylesheet language technology proposed by Netscape Communications in 1996 to provide facilities for defining the presentation of webpages. It was an alternative to the Cascading Style Sheets (CSS) technology.
A user interface markup language is a markup language that renders and describes graphical user interfaces and controls. Many of these markup languages are dialects of XML and are dependent upon a pre-existing scripting language engine, usually a JavaScript engine, for rendering of controls and extra scriptability.
A spacer GIF is a small, transparent GIF image that is used in web design and HTML coding. They were used to control the visual layout of HTML elements on a web page, at a time when the HTML standard alone did not allow this. They became mostly obsolete after the browser wars-fueled addition of layout attributes to HTML 2.0 table tags, and were mostly unused by the time Cascading Style Sheets became widely adopted.
Acid2 is a webpage that test web browsers' functionality in displaying aspects of HTML markup, CSS 2.1 styling, PNG images, and data URIs. The test page was released on 13 April 2005 by the Web Standards Project. The Acid2 test page will be displayed correctly in any application that follows the World Wide Web Consortium and Internet Engineering Task Force specifications for these technologies. These specifications are known as web standards because they describe how technologies used on the web are expected to function.
Tableless web design is a web design method that avoids the use of HTML tables for page layout control purposes. Instead of HTML tables, style sheet languages such as Cascading Style Sheets (CSS) are used to arrange elements and text on a web page.
In HTML, the standard markup language for documents designed to be displayed in a web browser, <div>
and <span>
tags are elements used to define parts of a document, so that they are identifiable when a unique classification is necessary. Where other HTML elements such as <p>
(paragraph), <em>
(emphasis), and so on, accurately represent the semantics of the content, the additional use of <span>
and <div>
tags leads to better accessibility for readers and easier maintainability for authors. Where no existing HTML element is applicable, <span>
and <div>
can valuably represent parts of a document so that HTML attributes such as class
, id
, lang
, or dir
can be applied.
In HTML and XHTML, the blockquote element defines "a section [within a document] that is quoted from another source". The syntax is
In computing, the two primary stylesheet languages are Cascading Style Sheets (CSS) and the Extensible Stylesheet Language (XSL). While they are both called stylesheet languages, they have very different purposes and ways of going about their tasks.
The Yahoo! User Interface Library (YUI) is a discontinued open-source JavaScript library for building richly interactive web applications using techniques such as Ajax, DHTML, and DOM scripting. YUI includes several cores CSS resources. It is available under a BSD License. Development on YUI began in 2005 and Yahoo! properties such as My Yahoo! and the Yahoo! front page began using YUI in the summer of that year. YUI was released for public use in February 2006. It was actively developed by a core team of Yahoo! engineers.
Extensible HyperText Markup Language (XHTML) is part of the family of XML markup languages which mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
Cascading Style Sheets (CSS) is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.
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. In HTML syntax, an attribute is added to a HTML start tag.
In web development, the CSS box model refers to how HTML elements are modeled in browser engines and how the dimensions of those HTML elements are derived from CSS properties. It is a fundamental concept for the composition of HTML webpages. The guidelines of the box model are described by web standards World Wide Web Consortium (W3C) specifically the CSS Working Group. For much of the late-1990s and early 2000s there had been non-standard compliant implementations of the box model in mainstream browsers. With the advent of CSS2 in 1998, which introduced the box-sizing
property, the problem had mostly been resolved.
jQuery Mobile is a touch-optimized web framework, specifically a JavaScript library, developed by the jQuery project team. The development focuses on creating a framework compatible with many smartphones and tablet computers, made necessary by the growing but heterogeneous tablet and smartphone market. The jQuery Mobile framework is consistent with other mobile app frameworks and platforms such as PhoneGap, Worklight, etc.
Foundation is a free responsive front-end framework, providing a responsive grid and HTML and CSS UI components, templates, and code snippets, including typography, forms, buttons, navigation and other interface elements, as well as optional functionality provided by JavaScript extensions. Foundation is an open source project, and was formerly maintained by ZURB. Since 2019, Foundation has been maintained by volunteers.