What does web design and development do?
Web design covers how a site looks, layout, colors, navigation, and how easy it is to use. Web development covers how it works, the code, functionality, and how it connects to forms, databases, and other systems behind the scenes.
Together, they turn an idea into a site that's both usable and functional. Most small business projects need both handled together rather than hired out separately, since a great-looking site that doesn't work right, or a working site that looks unfinished, both fail the same way.