Non-web designers won’t be really aware of what HTML is and how does it work. As a common man, he must have heard the term off course but he won’t know the advantages and disadvantages and to be honest, he wouldn’t even care much as long as his browsers are functioning properly. Now, let us think from a web developer’s perspective. In the world of web development, HTML is the new ‘IN’ thing. The best thing about HTML 5 is the built in functionality into the browser. But before we go further and discuss advantages and disadvantages of HTML5, we really need to know what HTML 5 actually is.