The HTMLFieldSetElement interface has special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of field-set elements.
The HTMLLabelElement.htmlFor property reflects the value of the for content property. That means that this script-accessible property is used to set and read the value of the content property for, which is the ID of the label's associated control element.
The HTMLLinkElement interface represents reference information for external resources and the relationship of those resources to a document and vice-versa. This object inherits all of the properties and methods of the HTMLElement interface.
The HTMLLinkElement.rel property reflects the rel attribute. It is a DOMString containing a space-separated list of link types indicating the relationship between the resource represented by the <link> element and the current document.
The HTMLMapElement interface provides special properties and methods (beyond those of the regular object HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of map elements.