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.

Nov 6, 2025 · The id global attribute defines an identifier (ID) that must be unique within the entire document.

The id attribute specifies a unique id for an HTML element (the value must be unique within the HTML document). The id value can be used by CSS and JavaScript to perform certain tasks for the element …

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, facilitating specific …

The id attribute defines a unique identifier for an HTML element. It is commonly used to point to a style in a style sheet, as well as anchor links and targets for scripts.

An HTML id is an attribute that can be added to an HTML element to give it a unique identifier. It is used in CSS or JavaScript to select and style the element, or to add behavior to it with JavaScript.

Oct 23, 2025 · Learn HTML id attribute with syntax, CSS selector, examples, and JavaScript usage. Understand id vs class difference with real-life examples.

Feb 22, 2025 · In simple words, we use id attribute to specify a unique id for an HTML element. For example, if we have two elements of the same name within a web page or style sheet, we can use …

This tutorial is all about the HTML id attribute. Learn what it is, its syntax, the difference between HTML class and id, how to use id in JavaScript, and more.

Nov 24, 2023 · The HTML global id attribute is used to specify a unique identifier for an HTML element. It cannot be shared across multiple elements within the same HTML document. The id attribute can …