What is the primary function of the id attribute in an HTML element?
It serves as a unique identifier for that specific element within the HTML document.
Which two languages commonly use the id attribute to perform a specific task on a particular element?
CSS and JavaScript.
What symbol is used in CSS to select and style an element by its id?
The ‘#’ (hash) symbol is used as a prefix to the id name.
According to the source, what is the most important rule regarding the use of id attributes in an HTML document?
An HTML document cannot have two elements with the same id; each id must be unique.
Because ids must be unique, we can style only _____ element at a time using an id selector in CSS.
one
In JavaScript, what is the id attribute commonly used for?
It is used to access and manipulate a unique HTML element.
What is the purpose of using HTML bookmarks with IDs?
They allow readers to quickly navigate to specific sections of a long webpage.
What is the first step in creating an HTML bookmark?
First, you must create the bookmark, typically by assigning an id to a heading or section element.
What is the second step to make an HTML bookmark functional after it has been created?
You must add a link that points to the bookmark’s id.
What is the correct syntax for a link that jumps to an element with the id ‘title’?
The link’s href attribute should be set to ‘#title’.
When a user clicks a link pointing to a bookmark, what action does the browser perform?
The page will scroll to the location of the element with the corresponding id.
What is the single main difference between an id and a class in HTML?
An id is unique within a page and applies to only one element, whereas a class can be applied to multiple elements.
