Content and presentation can be separated because the rules that control how content is displayed can be separated from the markup that denotes the structure of the content. Typically, style rules are stored separately from the content to which they apply, in resources which are referred to in these guidelines as style sheets. The ability to apply style to content based on user preferences and device capabilities. A structured data base or collection of metadata, in circumstances where the user interface is supplied entirely by the client application, lies outside the scope of this guideline. 3.1 Use a consistent style of presentation that will facilitate comprehension of the content.
Consistency helps users determine the relationships between items in the content.
This ability to understand the structure helps users navigate, orient themselves, and thus understand. This will help the user orient himself or herself within the document, focus on the important elements of the document, differentiate between a key element and the explanatory or supplementary material. 3.3 Divide large blocks of information into more manageable groups where natural and appropriate. For example, Divide user interface controls into logically organized groups. Paragraphs and sections should have clear, accurate, and informative headers.