What is CSS, How to use CSS

What is CSS, How to use CSS
  1. CSS is the language we use to style an HTML document. 
  2. CSS describes how HTML elements should be displayed.
  3. This tutorial will teach you CSS from basic to advanced.

CSS Example :-

body {


  background-color
: lightblue;


}


h1 {

  color
: white;
  text-align: center;
}

{
  font-family: verdana  font-size: 20px;

}

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CSS stands for Cascading Style Sheets. It is a style sheet language which is used to describe the look and formatting
of a document written in markup language. It provides an additional feature to HTML. It is generally used with HTML to
change the style of web pages and user interfaces. It can also be used with any kind of XML documents including plain XML,
SVG and XUL.

CSS is used along with HTML and JavaScript in most websites to create user interfaces for web applications and user interfaces for
many mobile applications.

What does CSS do

  • You can add new looks to your old HTML documents.
  • You can completely change the look of your website with only a few changes in
    code.

Why use CSS

These are the three major benefits of CSS:

1) Solves a big problem

Before CSS, tags like font, color, background style, element alignments, border
and size had to be repeated on every web page. This was a very long process. For example: If you are developing a large
website where fonts and color information are added on every single page, it will be become a long and expensive process.
CSS was created to solve this problem. It was a W3C recommendation.

2)
Saves a lot of time

CSS style definitions are saved in external CSS files so it is possible to
change the entire website by changing just one file.

3) Provide more attributes

CSS provides more detailed attributes than plain HTML to define the look and
feel of the website.

CSS Syntax

A CSS rule set contains a selector and a declaration block.

What is CSS, How to use CSS


Selector:
 Selector indicates the HTML element you want to style. It could be any tag like <h1>,
<title> etc.

Declaration
Block:
 The declaration block can contain one or more declarations separated by a semicolon. For the above
example, there are two declarations:

  1. color: yellow;
  2. font-size: 11 px;

HTML CSS FULL Example :-

What is CSS, How to use CSS

Each declaration contains a property name and value, separated by a colon.

Property: A Property is a type of attribute of HTML element. It could be color,
border etc.

Value:
 Values are assigned to CSS properties. In the above example, value “yellow” is assigned to color
property.

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