Presentation for your client's.
Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it's about controlling hundreds of articles, product pages for web shops, or user profiles in social networks.
If that’s what you think how bout the other way around? How can you evaluate content without design? No typography, no colors, no layout, no styles, all those things that convey the important signals that go beyond the mere textual, hierarchies of information, weight, emphasis, oblique stresses, priorities, all those subtle cues that also have visual and emotional appeal to the reader. Rigid proponents of content strategy may shun the use.
No typography, no colors, no layout, no styles, all those things that convey the important signals.
Rigid proponents of content strategy may shun the use of dummy copy but then designers might.
Depending on the state of affairs it may be fine to concentrate either on design or content.