Design and content form an inseparable whole. The dimension, colour and placement of the particular site elements are defined and explicitly weighted through the layout. According to the aim of the site, the right balance between e.g. graphics and information must be found. Drafts offer concrete parameters for the grid pattern, logo, colour values and typography. Internet guidelines document the layout and serve as binding rules. They provide detailed information concerning styles, dimensioning of content and navigation elements. A set of specifications can then ensure that the design is clearly defined and also guarantees the most consistent performance possible for further activities.