HTML5 Interview Questions and Answers

HTML5 users implement list tags to list out the required information. The most commonly used list tags are mentioned below for your acknowledgment.

Definition List: This list tag offers a list in it and takes Definition Term (<dt>...</dt>) and a detailed definition (<dd>...</dd>).

1. Ordered List: This list tag provides the required list by the user in a numbered format.

Syntax:
<ol>...</ol>

2. Unordered List: This one offers the user required a list in a bullet format.

Syntax:
<ul>...</ul>

Both the ordered and unordered list item tags use the list item tags (<ul>...</ul>) in them.

Custom attributes are one of the most important new features in HTML5. They play an integral role in semantic development. Custom attributes are designed to store custom data private to web pages or applications for which there are no other attributes. Because custom attributes are valid in HTML5, they get used in all browsers that support HTML5 doctypes.

All attributes in HTML5 on an element starts with "data-" like data-type="best", data-distance="4km", data-identifier="bestinterviewquestion.com".

We can color HTML elements in three different ways, as mentioned below.

• #efefef or Hex Color
• By using the color name such as blue, red, etc.
• RGB(10,234,128). This is a combination of red, green, and blue.

<footer>: This semantic element is used to contain information that should appear at the very end of the content section. It also contains additional information of the section such as copyright information, Author's name, and related links.

<article>: This one contains a self-contained composition which can logically be recreated by developers outside of the page without losing its primary meaning. For example news stories and blog posts.

<section> : This HTML5 semantic element holds content that shares a common informational purpose or theme.

<header>: Developers use this to contain navigational and introductory information about a section of the page, such as section heading, publication date and time, author’s name, content table, etc.

Web SQL is not a part of HTML5. It is a separate specification that helps in developing web apps. Web SQL is used to manage the client-side database because it stores data on the client side, not on the server side. A Web SQL database works only in latest versions of Google Chrome, Safari, and Opera browsers.

The <iframe> tag is used to indicate an inline frame, or, a browsing context that is nested. It allows outside documents to be inserted in the main HTML document seamlessly. Inline frames are mostly used in online advertising, where the contents of the iframe can e an ad from a third party.

The World Wide Web Consortium (W3C) is a community of developers working towards setting global standards for development.

WHATWG is short for Web Hypertext Application Technology Working Group. It was created during a W3C workshop session by working individuals of Apple, Mozilla and Opera Software in 2004. WHATWG is a community of developers focused more on HTML rather than XHTML and working on standards to improve on user needs.

Formatting tags are used in HTML 5 to display different styles of text. Here are the formatting tags in HTML 5:

• <b> - Used to bold text
• <strong> - Use to mark text as Important
• <i> - Used to write in Italics
• <em> - Used to emphasize text
• <mark> - Used to mark text
• <small> - Used to make the text small
• <del> - Used to Delete text
• <ins> - Used to Insert text
• <sub> - Used to make a subscript text.
• <sup> - Used to make a superscript text

• <frame>
• <basefront>
• <applet>
• <frameset>
• <big>
• <center>
• <bigcenter>
• <noframes>
• <dir>
• <tt>
• <acronym>
• <basefont>

In HTML 5, the manifest file is a normal text file used for listing resources in the browser which are to be cached for offline access. It also helps in loading resources faster and reducing server load time.