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An HTML attribute name can be made variable. HTML Tidy – an outdated HTML4 library that is slated for removal – has historically removed attributes with invalid names at the server side, so the result does not depend on a browser capability to ignore invalid attribute names, and the amount of data sent is reduced.
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 ...
The Template Attribute Language (TAL) is a templating language used to generate dynamic HTML and XML pages. Its main goal is to simplify the collaboration between programmers and designers. This is achieved by embedding TAL statements inside valid HTML (or XML) tags which can then be worked on using common design tools.
Name(s) of the class(es), separated by spaces, to be added to the HTML "class" attribute. String: optional: CSS formatting markup: style: CSS directives for formatting the text. Added to the HTML "style" attribute. String: optional: HTML unique identifier: id: A unique HTML identifier, which must start with an alphabetic letter. Added to the ...
An HTML parser (part of a web browser) that is capable of interpreting HTML-like markup even if it contains invalid syntax or structure may be called a tag soup parser. All major web browsers currently have a tag soup parser for interpreting malformed HTML, with most error-handling elements standardized.
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.
Discards attributes not on a whitelist for the given element. Turns broken or invalid entities into plaintext. Double-quotes all attribute values. Attributes without values are given the name as value. Double attributes are discarded. Unsafe style attributes are discarded. Prepends space if there are attributes.
Inline styles are CSS style assignments that have been applied to an element using the style attribute. You can examine and set these styles by retrieving the style object for an individual element. For example, to highlight the text in a heading when the user moves the mouse pointer over it, you can use the style object to enlarge the font and ...