One of the major features of CSS is the possibility to control page layout without needing to use presentational tools. However, CSS layout has gained a rather undeserved reputation of being difficult, particularly among those who are studying this language for the first time. This is partly due to browser problems like for example IExplorer 7, but mostly due to a proliferation of different layout techniques available on the Web. It seems that every CSS author has their own technique for creating multi column layouts, and new CSS developers will often use a technique without really understanding how it works. This “black box” approach to CSS layout may get quick results, but ultimately stunts the developer’s understanding of the language.
All the main CSS layout techniques rely on three basic concepts: positioning, floating, and margin understanding. The different techniques really aren’t that different, and if you understand the core concepts, it is relatively easy to create your own layouts with little or no hassle.
Useful benefits of CSS in SEO.
It makes your website more accessible. The number of users browsing the web through hand held devices are continuously growing tremendously.
Increases Download Speed of Your Website
CSS code downloads faster than tables. Browsers read through tables twice previous to exhibiting their contents; first to work out their structure and then to determine their content.
Cross Browser Compatibility
CSS makes your website more professional. Taking the benefits of CSS like making your websites load faster and easy to maintain, you save a lot of time and labor.
Centered designs are very important at the moment, so learning how to center a design in CSS is one of the first things most developers want to learn. There are two basic methods for centering a design: one uses auto margins and the other uses positioning and negative margins.
There are a few different ways of doing CSS-based layout, including absolute positioning and using negative margins. Float-based layouts the easiest method to use. As the name suggests, in a float-based layout you simply set the width of the elements you want to position, and then float them left or right.