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HTML attributes are special words used inside the opening tag to control the element's behaviour. It is a piece of markup language used to adjust the behavior or display of an HTML element.HTML attributes are a modifier of a HTML element type.
Bootstrap (formerly Twitter Bootstrap) is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains HTML , CSS and (optionally) JavaScript -based design templates for typography , forms , buttons , navigation , and other interface components.
HTML5: 1 May 2007 [41] 17 December 2012: 28 October 2014: 27 March 2018 [42] HTML 5.1: 17 December 2012: 21 June 2016: 1 November 2016: 28 January 2021 [43] HTML 5.1 2nd Edition — 20 June 2017: 3 October 2017 HTML 5.2: 18 August 2016: 8 August 2017: 14 December 2017: 28 January 2021 [3] HTML 5.3: 14 December 2017 [44] — — 28 January 2021 [40]
The attribute was first introduced in the HTML 1.2 draft in 1993 to provide support for text-based browsers. [1] In HTML 4.01, which was released in 1999, the attribute was made to be a requirement for the img and area tags. [2] It is optional for the input tag and the deprecated applet tag. [3]
XHTML 1.0 was published as a W3C Recommendation on January 26, 2000, [60] and was later revised and republished on August 1, 2002. It offers the same three variations as HTML 4.0 and 4.01, reformulated in XML, with minor restrictions. XHTML 1.1 [61] was published as a W3C Recommendation on May 31, 2001. It is based on XHTML 1.0 Strict, but ...
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.
A separate document is linked to a frame using the src attribute inside the <iframe />, an inline HTML code is embedded to a frame using the srcdoc attribute inside the <iframe /> element. First introduced by Microsoft Internet Explorer in 1997, standardized in HTML 4.0 Transitional, allowed in HTML5.
The MediaWiki software, which drives Wikipedia, allows the use of a subset of HTML 5 elements, or tags and their attributes, for presentation formatting. [1] However, most HTML functionality can be replicated using equivalent wiki markup or templates. These alternatives are generally preferred within articles because they are often simpler for ...