Attribute Groups

In HTML, attribute groups are predefined sets of attributes that can be applied to an element using a single attribute. Attribute groups are useful for simplifying the process of writing HTML code and for ensuring consistency across multiple elements with the same set of attributes.

For example, the “align” attribute group in HTML includes the “left”, “right”, “center”, and “justify” attributes, which can be applied to elements such as images, tables, and paragraphs to align them within their container. Instead of writing out each individual attribute, you can simply use the “align” attribute and specify the desired value, like this:

Attribute groups can also be used in combination with other attributes. For example, the “border” attribute group includes the “border”, “frameborder”, and “framespacing” attributes, which can be used together to control the border and spacing of an iframe element.

Some other commonly used attribute groups in HTML include:

The “form” attribute group, which includes attributes for specifying the form that an input element belongs to.

The “target” attribute group, which includes attributes for specifying the target window or frame for a link or form submission.

The “charset” attribute group, which includes attributes for specifying the character set used by a document. Overall, attribute groups in HTML can be a useful tool for simplifying and standardizing your code, as well as improving the readability and maintainability of your HTML documents.