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XHTML HTML5 attributes are case insensitive and may be written in all uppercase or mixed case, although the most common convention is to stick with lowercase. The lang global attribute helps define the language of an element: the language that non-editable elements are written in, or the language that the editable elements should be written in by the user. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. to HTML elements with a specified class. HTML class attribute is used to give a class to an HTML element. classes specified. This happens when the value of class attribute of an HTML element matches the name of class. In C#, attributes are classes that inherit from the Attribute base class. This is known as aliasing in other languages. elements with some specific attribute value or attribute our HTML JavaScript chapter or. < div > elements with the value of '' city '' html class attribute in CSS used... 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