Every business is trying to make websites that are user engaging. An attractive website increases the engagement time as the customer spends some time exploring it. Thus, every company is hiring developers who can make that happen. If you are a CSS aspirant is applying for the post of CSS developer, make sure you go through the smart compilation of these css interview questions that can help you achieve your dream job.
| CSS Full Form | Cascading Style Sheets |
| CSS is used | for styling web pages. |
| CSS is developed By | Håkon Wium Lie; Bert Bos; World Wide Web Consortium |
| CSS file Extension | .css |
| CSS Rule consists of | selector and a declaration block |
| CSS first release date | December 17, 1996 |
Below are the list of Best CSS Interview Questions and Answers
Cascading style sheets or CSS is a web designing language simple for HTML elements. The application is commonly known as XHTML. It is basically used to simplify the process and make the web page look presentable.
CSS can be integrated in three ways:
<p style="colour:skyblue;"> hello world!</p>
<head> <link rel="text/css" href="your_CSS_file_location"/> </head>
<head>
<style>
p{
color:lime;
background-color:black;
}
</style>
</head>
Demerits of external css are as follows:
Demerits of Embedded Style Sheets:
The CSS box defines the design and the layout of elements of CSS. The several elements are:
Margin: transparent area outside border
Border: the padding and content option with a border around it is shown.
Padding: Space is around content. Padding is transparent.
Content: box where text and images appear.
e.g.:
div{
width: 300px;
border: 25px solid yellow;
padding: 25px;
margin: 25px;
}
The z-index helps specify the stack order of positioned elements that may overlap one another. The z-index default value is zero and can take on either a positive or negative number.
An element with a higher z-index is always stacked above a lower index.
Z-Index can take the following values:
<p style="colour:skyblue;"> My Sky!</p>
<head> <link rel="text/css" href="your_CSS_file_location"/> </head>
<head>
<style>
p{
color:lime;
background-color:black;
}
</style>
</head>
e.g.: rgb(r,g,b):
In this type the values can be in between the integers 0 and 255. rgb(r%,g%,b%): red, green and blue percentage is shown.
Pseudo-elements are keyword added to the selector that allows one o style a specific part of the selected element. CSS is used to apply styles in HTML mark-up. In some cases when extra mark-up or styling is not possible for the document, then there is a feature available in CSS known as pseudo-elements. It will allow extra mark-up to the document without disturbing the actual document. It can be used for;
Syntax
Selector: :pseudo-element {
property1 :value;
property2 :value;
}
A name preceded by a full stop is considered as a class selector in CSS. Selectors that are unique to a specific style, are called CLASS selectors. Declaration of style and association with HTML can be made through this. An ID identifies a single element whereas a class identifies more than one element.
Syntax for the class selector:
Classname:it can be A-Z, a-z or digits.
.top {font: 14em ;} //class selector
<Body class= "top"> //this class is associated with element </body>
Basically it is not case sensitive but the class names are considered as case sensitive in HTML 4.01 nevertheless font families, URL’s of images, etc is. Only when XML declarations along with XHTML DOCTYPE are being used on the page, CSS is case -sensitive.
Media is one of the most important features of CSS. The media renders the design and customization of documents. By applying media control over the external style sheets, they can be retrieved and used by loading it from the network. Some of the media types are:
There are several pointers that make local tags different from physical tags:
| Physical Tags | Local Tags |
| Physical tags are used to indicate how a particular character is to be formatted | logical tags are used to indicate by the visually impaired and put emphasis on the text. |
| Physical tags are also referred to as presentational mark-up | Logical tags are useless for appearances |
| Physical tags are newer versions | Logical tags are old and concentrate on content |
While HTML provides easy structure method, it lacks styling, unlike Style sheets. Moreover, style sheets have better browser capabilities and formatting options. CSS works better on bigger pages and as the pages grow the benefits become more and more visible. HTML is basically for smaller pages. Due to modularity, CSS has become popular it makes the process simple and webpages more presentable and is not meant for HTML alone.
It is an instruction that tells browser on how to render a specific element on the HTML page. It consists of a selector with a declaration block that follows. Rule set: Selectors can be attached to other selectors to be identified by rule set.
It has two parts:
There are several limitations of CSS such as:
Different versions of CSS are:
These classes are used to define a special state of an element. You can use them for
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