Top 15 HTML Interview Questions with Answer Keys

If you are a beginner to the web designing/web development, probably this would be the first thing for you to learn. Though there are many enhancements in the technologies that are used to build pages, however, this remains still the basic. Because of which, HTML is one of the basic topics to help evaluate the understanding of the concepts.

Moreover, HTML is the standard markup language for creating Web pages. HTML describes the structure of web pages using the markup. Also, HTML is the building block of web pages and the elements are represented by tags.

Keeping above mentioned things in mind, we have decided to create a blog post to focus on the HTML questions which might be asked in the interview. Keep reading –


html interview questions

1. What’s the extension of HTML files?

HTML supports both .htm and .html extension.

2.How do you create a frames?

For creating HTML frames, you have a <frame> tag within a frameset (<frameset>). Here, <frame> tag defines a particular window within the frameset.

3. How can you set an image as a background on the web pages?

To set an image as a background on the web page, point the body background to the name of your image you want to set as a background as shown below- 


<body background= “image.gif”>

You can also set the background image, so during using the scroll bar in the browser, it remains still.  To do this add the BGPROPERTIES tag as shown below:- 

<body background = “image.gif”bgproperties=”fixed”>

4. Does a hyperlink apply to text only?

No, hyperlinks can be used in the images as well. That feature converts an image into a link that will allow users to link another page when they clicked. Here, <a href=” “>…</a> tag is used with the <img> tag.

5. What are some of the common lists that can be used when designing a page?

These are the supported list types –

  • Unordered list
  • Ordered list
  • Definition list
  • Menu list
  • Directory list 

6. Name three ways to define a color in HTML?

  1. Hex
  2. RGB
  3. Name (ie blue)

.colorMy { color:blue; color:#1b2dd1; color:rgb(27, 45, 209); }             


7. Explain, what’s the difference between == and === ?

The 3 equal signs mean “equality without type coercion”. Using the triple equals, the values must be equal in type as well.

== is equal to

=== is exactly equal to (value and type) 

Let’s understand this with an example –

0==false // true

0===false // false, because they are of different type

1==”1″ // true, auto type coercion

1===”1″ // false, because they are of different type

8. What is the difference between form get and form post?


GET Method

POST Method

They are a part of URL. So, parameters saved in the browser.

In the post, parameters are not saved in history.

Get can be bookmarked.

POST can’t be bookmarked.

This is not secure.

This is Secure.

Easy to hack.

Difficult to hack.

When sending passwords or may some other sensitive information, then GET method should not be used.

And here for sending sensitive information POST method is used.

It can be Cached

It can’t be Cached.

This is Restricted. Only ASCII characters allowed.

Here no restrictions, It also Allows Binary data.

9. What’s the difference between an alert box and confirm box in HTML?

An alert box is a popup box that contains only one element. Most of the times, this is just an information popped up on the user’s screen. There is only one element, eg OK button.

However, confirm box has two buttons – OK and cancel. This is used to ask the user’s choice. 

10. What’s the better way to design the layout of web pages – a table tag or a div tag?

– The better and very efficient way to design the layout of the web pages is the <div> tag.

– The <table> tag is used to present the data in tabular format.

11. How do you create a button in HTML, which acts as a link?

There we have two ways of creating hyperlinks buttons:- 

  1. <FORM ACTION=”[url]” METHOD=get>

                    <INPUT TYPE=submit VALUE=”Text on button”>


  1. <INPUT TYPE=”Submit” VALUE=”Go to my link”

                  ONCLICK=”;” />

12. What’s the image map in HTML?    Job Interview

In HTML, Image map links to different web pages using a single image. Here, you can define shapes in the images and also you want to make a part of an image mapping. 

13. What’s the benefit of collapsing white space?

The Blank sequence of space characters are the White spaces. In HTML, they are treated as a single space character. Because the browser collapses multiple spaces into a single space, hence you can indent lines of text without any worrying about the multiple spaces. This feature enables the designer to organize the much more readable HTML code format.

14. How can you create a link to sections within the same page?

The Links can be created by using the <a> tag and with referencing through the use of the number (#) symbol. Let’s suppose, you have one line as  <a href=”#link”>Show This</a> and the result in the words “Show This” appearing on the web browser and links to a bookmark named link. Then you can create a separate tag like <a name=” link”> on the top of the same web browser so that the user will be linked when he/she clicked on “Show This”.

15. What happens when the no of values in the columns and rows attribute does not add up to 100 %?

The size of browser frames relative to the total sum of the values. when the columns attribute is set to 100%, 200% then the browser shows two vertical frames with the second being double as the first.

successful interview

Apart from this, there are super helpful HTML tutorials available on our Pristine Tech School channel. Please find the information below –
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Hope this article was helpful. Let us know if you have any feedback/suggestions for us in the comment section below.

Good Luck. Happy Programming !

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