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 3, 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, …

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

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 …

In CSS, you must write a hash ( # ) character followed by the id of the element for selecting the element with a specified id. It must have at least one character, and must not contain …

In JavaScript, the id attribute is used to access and manipulate a specific HTML element using the getElementById () method. This allows us to update content, change styles, or respond to …

The id attribute gives an HTML element a unique identifier. No two elements on the same page should share the same id. This uniqueness ensures that styles or scripts affect only the …

We can use HTML id to create anchor links. There are two steps to create an anchor link. Add an id to an element. Create a hyperlink using id. Let's see an example of how this would work …

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 id …