HTML (99 questions)

What is the <canvas> element used for?

How can external resources be embedded into HTML?

Describe the <color> selector element.

How can we add video subtitles in HTML, and what other benefits does this carry?

How can we change the controls appearance of the video player in the video element?

How a local video can be added to a page? How multiple video option can be provided? (This is also valid for audio only.)

Explain how a container, video codec and audio codec are related.

How can a window-in-a-window (nested browsing context) be implemented in HTML?

Describe the progress and meter elements.

What is the label element used for?

How can form controls be grouped?

What are the 2 most common numerical inputs (in forms)?

What are the 5 most common date and time controls for forms?

What attribute can be used to send hidden data through a form?

How a file selection control can be added to a form?

How menu options in drop-down and scrolling menus can be grouped?

How a drop-down menu can be created (usually in a form)?

How a scrolling menu control can be created (usually in a form)?

What is the button element?

List the 5 most common specialised text-entry fields (in forms).

What element is used for drop-down menu input (in forms)?

What is the structure of the submit and reset buttons in forms?

What the disabled and readonly attributes do (in forms)?

What is the full(ish) structure of a multiple-line text-entry control (in forms)?

What is the full(ish) structure of a single-line text-entry control (in forms)?

What is the basic structure of a single-line text-entry control (in forms)?

What is the input element and what's its main attribute (in forms)?

What does the name attribute do in form sub-elements?

What is the difference between the GET and POST methods (in forms)?

What is the element used for forms, and its main attributes?

How can columns be semantically grouped in a table? How can a column inside a group be accessed?

What are the table elements for header, body and footer?

How table accessibility can be improved?

How a title or description can be included in a table? Why is it useful?

How a spanning cell (vertically and horizontally) can be created, in a table?

Is table a block element?

What is the most common minimal table structure?

Explain the different ways to establish image resolution and sizes in responsive design.

How can we offer alternate images to the browser, in case it is not compatible with an image format (mime types)?

Are the images (contained in the picture and source elements) downloaded before the CSS and JavaScript files?

What element is used in the art-direction-based selection, when talking about image responsiveness? In what case art-direction-based selection should be used?

How a list of image source options can be specified to achieve image responsiveness, in terms of the image resolution (using w-descriptors)?

How a list of image source options can be specified to achieve image responsiveness, in terms of the image resolution (using x-descriptors)?

How can we make the radio buttons and checkboxes checked by default?

What is the difference between device pixels (physical pixels) and layout pixels (reference pixels, CSS pixels, or points)?

How radio buttons and checkboxes report their values when a form is submitted?

How checkboxes are built, when are they used, and how can they be grouped?

How radio buttons are built, when are they used, and how can they be grouped?

What’s the function of the submit button on a form?

How to make a field required in an HTML5 form?

What’s the structure of a form element?

What is placeholder text (in forms) and how can be added to a text field?

Name 5 self-closing elements.

How can we get user input on a form?

How is a bulleted ordered list created?

How is a bulleted unordered list created?

What are the main descriptive HTML5 tags?

What’s the main characteristic of HTML5?

What does “comment out” refers to?

What are tags, opening tags and closing tags?

What are HTML elements?

What is the purpose of HTML?

What is the DOM?

What is a placeholder text (in general)?

What are attributes and how their syntax looks like?

What is markup, in HTML?

What are the three options to use SVG images?

What SVG stands for? What is it?

How can image dimensions be provided?

How is a dead link created?

What role takes the alt attribute in the img tag?

What image formats are supported by web browsers?

What’s the image element and its attributes? Is it self-closing (empty) element? It is an inline element?

How can the automatic detection and transformation of long numbers into telephone numbers can be disabled?

How a telephone number can be converted into a link so people can call directly from their mobile phones?

How is an email link created? How can we prevent bots from acquiring it?

How link to internal sections of a page (document fragment) with anchor elements can be achieved?

Describe the structure of a URL.

What’s an anchor element, and what its structure looks like?

How can we provide the full name of an abbreviation?

What are the two ways to escape a character in HTML?

What are roles? Give some examples.

When and why use the class attribute?

When and why use the id attribute?

Name the two generic elements and their uses.

How contextually relevant text should be marked down?

What does the q element is used for?

What does the strong element is used for?

What does the em element is used for?

Name at least 8 elements HTML5 introduced to give meaning to sections of a typical web page.

How can preformatted text, such as code or poems, can be marked up?

What are the figure and figcaption elements, and when are they used?

How can quotes, testimonials, and copy from other sources be marked up?

What are description lists used for, and what is their structure?

What HTML stands for?

How can HTML5 sections and outlines be used properly?

What is the accesskey global attribute used for?

What is the tabindex global attribute used for?