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  2. HTML attribute - Wikipedia

    en.wikipedia.org/wiki/HTML_attribute

    In HTML syntax, an attribute is added to a HTML start tag. Several basic attributes types have been recognized, including: (1) required attributes needed by a particular element type for that element type to function correctly; (2) optional attributes used to modify the default functionality of an element type; (3) standard attributes supported ...

  3. HTML element - Wikipedia

    en.wikipedia.org/wiki/HTML_element

    An HTML element is a type of HTML (HyperText Markup Language) document component, one of several types of HTML nodes (there are also text nodes, comment nodes and others). [vague] The first used version of HTML was written by Tim Berners-Lee in 1993 and there have since been many versions of HTML.

  4. div and span - Wikipedia

    en.wikipedia.org/wiki/Div_and_span

    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 their intended display properties in one particular medium.

  5. HTML - Wikipedia

    en.wikipedia.org/wiki/HTML

    Some HTML elements are defined as empty elements and take the form < tag attribute1 = "value1" attribute2 = "value2" >. Empty elements may enclose no content, for instance, the < br /> tag or the inline < img > tag. The name of an HTML element is the name used in the tags.

  6. HTML landmarks - Wikipedia

    en.wikipedia.org/wiki/HTML_Landmarks

    The role attribute is used to define an element's role on a page. When sectioning elements were introduced, the role attribute became used less for landmarking. This is because roles were applied by default to most sectioning elements, therefore, they were more widely used and accepted for their simplicity.

  7. Meta element - Wikipedia

    en.wikipedia.org/wiki/Meta_element

    In cases where the content attribute's value is a URL, many authors decide to use a link element with a proper value for its rel attribute as well. [ 27 ] For a comparison on when it is best to use HTTP-headers, meta-elements, or attributes in the case of language specification: see here .

  8. Document Object Model - Wikipedia

    en.wikipedia.org/wiki/Document_Object_Model

    In HTML DOM (Document Object Model), every element is a node: [4] A document is a document node. All HTML elements are element nodes. All HTML attributes are attribute nodes. Text inserted into HTML elements are text nodes. Comments are comment nodes.

  9. CSS box model - Wikipedia

    en.wikipedia.org/wiki/CSS_box_model

    However, it varied depending on the element. The HTML width attribute of a table defined the width of the table including its border. [7] On the other hand, the HTML width attribute of an image defined the width of the image itself (inside any border). [8] The only element to support padding in those early days was the table cell.