A skilled HTML developer who understands the coding process in the HTML language is essential. HTML coders are also responsible for applying the correct HTML syntax, developing and changing code, generating sections of sites, formatting and organizing content, and much more. The process of developing a website or web app begins with design ideation, web page design in PSD formats with the assistance of a web designer, and then final development work in the hands of a web developer. Between the designing and the final production stages, there is the work of an HTML developer who converts PSD format site designs into HTML. This HTML layout is then passed on to a website developer who specializes in a specific programming language or CMS to turn it into a finished project. As part of his job responsibilities, he should also be capable of authoring and revising CSS.