Cascading Style Sheets, shortly known as CSS, is an advance and smart way to add more styling and information to web pages. CSS helps in adding styling elements in HTML pages and structure the content to be displayed on there.

This styling language is a breakthrough in the field of web designing. It allows developers to fully control and manage the layout of multiple web pages that too at once. Saying in another way, by using CSS applications, it is easier for designers to define each HTML element in as many web pages as a designer wants. In case, you want to automatically update the elements of the web, simple change the style and enjoy the flexibility provided there.

Primarily, there are three main ways to add CSS styles on web pages:

      1. Inline with HTML
      2. Internal CSS
      3. Separate style sheets or External CSS

Benefits of Using CSS or separate style sheets in web pages:

1. Minimize the size of the file as each CSS definition is written only once.

2. Just by editing a single external CSS document, designers can change the layout of all the web pages.

Cascading Style Sheets (CSS) is a style sheet language that is used to present a document written in a markup language. CSS has a lot more to offer. One of the most common applications of CSS is in web pages written in HTML and XHTML. Here, the language can be applied to any kind of XML document, including SVG and XUL.

CSS improves the content accessibility and helps in better visibility of a web page. It provides more controlled and flexible specifications of presentation characteristics and reduces repetitions as well as complexity in the structural content of the site.

CSS can add more beauty in the website design. Combining CSS with the functionality of the content management system, a lot of flexibility can be added to the content submission form.

In total, implementing CSS brings in a large amount of flexibility in the entire project management via a global style sheet - used to affect and style designs throughout the site.