Web Design Interview Questions and Answers
Question - 71 : - What is the use of a selector in CSS?
Answer - 71 : -
A CSS selector is used with a rule in the inline elements, which require styling. With the help of selectors, it is easy to find and select HTML elements based on factors, such as name, ID, attribute, etc.
Question - 72 : - Can you give an example of using an ID selector in CSS?
Answer - 72 : -
The ID selector is used in CSS to point to a target element for usage. It is denoted in the following example:
#example {padding: 20px;}
...
Question - 73 : - What is the use of grouping in CSS3?
Answer - 73 : -
Grouping is used in CSS3 to give users the ability to reuse and apply the same CSS style element to multiple HTML entities, using just one single declaration statement.
A simple example of grouping is as shown below:
#grouped g, ul { padding-top: 20px; margin: 1; }
Question - 74 : - What is the use of a class selector in CSS?
Answer - 74 : -
Class selectors in CSS begin with a “.” (period) key and are followed by the name of the class. It is used to select a statement and modify the style of that element in the corresponding part of the HTML tag.
Consider the following example:
.exampleclass {font-family: TimesNewRomanl; font-size: 20; background: red;}
Question - 75 : - What is the use of Webkit in CSS3?
Answer - 75 : -
Webkit is an important software component in CSS that allows for the easy rendering of HTML and CSS elements in a variety of browsers, such as Chrome, Firefox, and Safari.
There are many engines for browsers such as:
- Gecko for Mozilla
- Presto for Opera
- Edge for Internet Explorer
Question - 76 : - What are the uses of child selectors in CSS?
Answer - 76 : -
Child selectors are primarily used in CSS to look up the ‘child’ component of an element in CSS.
Consider an example where the
tag is used in a paragraph. Then, the ‘ul’ tag becomes a child of the paragraph element. To implement this in CSS, the following syntax is used:
p > ul { font-size:20px; }
Question - 77 : - How does CSS3 help in implementing rounded borders easily?
Answer - 77 : -
CSS3 has the property that allows elements to be created with nice-looking rounded corners. This can easily be applied to all four sides or as per requirement.
The property has four attributes for four corners:
Question - 78 : - What are some of the Web Development technologies that you know?
Answer - 78 : -
This question is very common in a Web Development interview. The answer is based on your learning, experience, and proficiency in this field. However, a good Web Developer will have profound working skills in any of the following technologies:
- HTML
- CSS
- JavaScript
- SQL
- Python
- PHP
Question - 79 : - What is the meaning of long polling in Web Development?
Answer - 79 : -
Long polling is a development pattern that is used to emulate a data push operation from a server to a client machine.
When long polling is operational, the client sends in a request to the server, and the data is pushed. The connection will timeout only when the data is sent to the client or after the timeout criteria are met.
Question - 80 : - Why are external style sheets preferred?
Answer - 80 : -
External style sheets provide an ample amount of advantages to developers. Some of the benefits are as follows:
- Classes can be reused any number of times.
- They allow for the style control of multiple documents through a single file.
- Selectors and grouping can be used to apply styles easily.