The class attribute specifies one or more classnames for an element . The class attribute is mostly used to point to a class in a style sheet. However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class.
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Attributes provide a powerful method of associating metadata, or declarative information , with code (assemblies, types, methods, properties, and so forth). After an attribute is associated with a program entity, the attribute can be queried at run time by using a technique called reflection.11 Mar 2022
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