Tag Name : Represents a tag name available in the DOM. For example $('p') selects all paragraphs <p> in the document.
Tag ID : Represents a tag available with the given ID in the DOM. For example $('#some id') selects the single element in the document that has an ID of some-id.
Tag Class : Represents a tag available with the given class in the DOM. For example $('.some-class') selects all elements in the document that have a class of some class.
