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.

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 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 …

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.

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 …

HTML Id lets you uniquely identify an element on a page, so you can style it or target it with JavaScript easily.

CSS ID selectors accept any CSS identifier. If the id starts with a digit or one hyphen immediately followed by a digit, both the hyphen and digit must be escaped in CSS. For example, while id="544 …

Jun 20, 2024 · What is the id Attribute? The id attribute specifies a unique identifier for an HTML element. Each id must be unique within a document, meaning that no two elements can have the …