What is important to know when writing a html and css for your web site? First of all the SEO friendly cod and tag order (a tableless, minimal inline style a order of tags like <h1>, <h2, <h3> etc, a strong tag use when it's neded and so on...).

Also you must have a identical site in all browsers, a small size code (less of flash and small pictures used for design like header image or background images). Try to have a W3C valid html.

All of that items that was mentioned to implement a layout design into a HTML template are the main feature in our work.