Web design has changed significantly in recent years. 

In the past all pages of a website were designed individually. Designers often did not pay attention to the re-use of elements, but rather treated all pages separately.

When websites started growing in size and complexity, this often led to inconsistent user experiences, because existing templates were used to display content they were not designed for.

Today, a much more holistic approach to web design is needed, taking current, changing, and future requirements into consideration.