What is the CSS ? How can learning the css ..

CSS : (Cascading Style Sheets)  is the primary innovation you ought to begin learning after HTML. Whereas HTML is utilized to characterize the structure and semantics of your substance, CSS is utilized to fashion it and lay it out. For illustration, you'll utilize CSS to change the textual style, color, measure, and dispersing of your substance, part it into numerous columns, or include activitys and other enhancing highlights.

Within the Presentation to HTML module we secured what HTML is, and how it is utilized to stamp up archives. These archives will be discernable in a web browser. Headings will see bigger than standard content, sections break onto a unused line and have space between them. Joins are colored and underlined to recognize them from the rest of the content. What you're seeing is the browser's default styles — exceptionally essential styles that the browser applies to HTML to form beyond any doubt it'll be essentially discernable indeed in case no express styling is indicated by the creator of the page.

 Preferences of CSS 

• CSS spares time − You'll be able compose CSS once and after that reuse same sheet in different HTML pages. You'll characterize a fashion for each HTML component and apply it to as numerous Web pages as you need.
• Pages load faster − In the event that you're using CSS, you are doing not ought to type in HTML tag traits each time. Fair type in one CSS run the show of a tag and apply it to all the events of that tag. So less code implies speedier download times
• Simple upkeep − To form a worldwide alter, essentially alter the fashion, and all components in all the internet pages will be upgraded consequently
• Predominant styles to HTML − CSS includes a much wider array of properties than HTML, so you'll be able deliver a distant way better see to your HTML page in comparison to HTML attributes
• Multiple .Gadget Compatibility − Fashion sheets permit substance to be optimized for more than one sort of gadget. By utilizing the same HTML report, diverse adaptations of web site can be displayed for handheld gadgets such as PDAs and cell phones or for printing
• Global web benchmarks − Presently HTML properties are being censured and it is being prescribed to utilize CSS. So its a great thought to begin utilizing CSS in all the HTML pages to create them congruous to future browsers.
• 
  
  
  

CSS syntax 

CSS could be a rule-based dialect — you characterize rules indicating   bunches of styles that ought to be connected to specific components or bunches of components on your web page. For illustration "I need the most heading on my page to be appeared as expansive ruddy content."

The selector focuses to the HTML component you need to style. The a.ffirmation piece contains one or more affirmations isolated by semicolons. Each announcement incorporates a CSS property title and a esteem, isolated by a colon. Multiple CSS statements are isolated with semicolons, and announcement squares are encompassed by wavy braces

Example

In this example all <h1> elements will be center-aligned, with a red text color:

h1{
  color: red;
  text-align: center;
}