HTML - The id attribute - W3Schools
The HTML id attribute is used to specify a unique id for an HTML element. You cannot have more than one element with the same id in an HTML document.
HTML id global attribute - MDN
Nov 6, 2025 · The id global attribute defines an identifier (ID) that must be unique within the entire document.
HTML a element with an id - Dofactory
Sep 30, 2023 · In HTML, the id attribute on an anchor element assigns a unique identifier to that a element.
HTML Id Attribute - GeeksforGeeks
Jul 11, 2025 · HTML id attribute provides a unique identifier for an element within a document. It allows targeted selection and manipulation of the element through CSS and JavaScript, …
What is the Difference Between the “id” and “name” Attributes
Both "id" and "name" attributes are used in the DOM tree, but for different purposes. The "id" attribute is used to reference an element in the DOM tree, while the "name" attribute is used to …
HTML - id - Online Tutorials Library
HTML "id" is an attribute used to uniquely identify an element within a web page. It serves as a label for that element and enables JavaScript and CSS to target it specifically.
HTML: Valid id attribute values? - Stack Overflow
When creating the id attributes for HTML elements, what rules are there for the value? This differs between HTML5 and previous versions of the spec. I explained it here: …