At the time of invention of HTML, everything was done with the use of tags. Selection of the font, its alignment at the center of the page, and for everything there were tags. However, now this way of writing pages has become obsolete and has been replaced by CSS to keep the content and style distinct.

What is CSS?
Cascading Style Sheets, or CSS is a way to characterize how will your page look like with one command. There is no need to keep repeating the same thing again and again, as in HTML. For example, in HTML the tag would look like:

<p><font face="Arial">WELCOME!</font></p>
<p><font face="Arial">Hope your visit will be memorable.</font></p>

Using CSS, you can put a style tag at the top of your website:

<style>p { font-family: Arial, }</style>

After this, you can remove the font tags altogether:

<p>WELCOME!</p>
<p>Hope your visit will be memorable .</p>

With the use of a single tag, you have informed that all your paragraphs have to be in Arial font. There is no need to write in again with each paragraph.

Headings and Lists
CSS helps to create semantically correct pages. This means that it would be free from unnecessary codes and will make more sense to the visitors. It helps make web pages small and simple. The most important things after the paragraphs of text are the headings and lists.

Headings are used for titles and subtitles. These HTML tags begin with h, such as h1, h2 etc. Lists can be anything except the paragraphs of text. For instance, to make navigation, links lists can be used. This makes it more compatible with the non-graphic browsers.

Bold, Italic, and Images
CSS lacks a good way to make the words, bold or italics. So, you will have to use the traditional b and i tags. Images can also be put in lists if they are more than one. This means that you can create a neat web page with the use of the six simple tags, that is, h, ul, li, b, i and img. This is a big advantage as it makes the page look neat, quick to download and display.

Custom Style sheets
Custom Style sheets allow the users to view the websites in the way they want to. Most of the old-aged users prefer to have a consistency on the web. The Custom Style sheets allow them to make changes such as a bigger text and simpler layout.