If you’re strictly speaking about the general concepts of web design vs. web development however, the distinction is a little more clear.

1. Difference Between Web
Design And Development
Web development vs
Web design
Web design comprehends a number of
essential components which includes
colors, its layout and entire graphical
appearance.
Web development is about web coding
and varieties of other coding languages.
They generally use HTML text editors.

2. Web Development
Constitutes with two different flavors:
Front-end development and back-end
development.
Chief focus of the back-end development is to
advance programming and interactions on the
web page.
A front-end developer considers, To create the
structure of the site HTML is used, for visual
layout and styles they prescribe CSS, and even
some JavaScript

3. Web DesignDo’s & Don’ts of web design:
• Web designers are needed to create a
balanced layout. Heavy and light elements
should be used proportionally to achieve a
balanced website.
• Concept of contrast should be used
judiciously. This concept is applicable on
sizes, shapes and textures to draw attention
on certain sections of the websites.
• A proportional “spotlight” of certain
elements is intended of a perfect layout.
• A rhythm is very essential to derive the
best user experience.

4. Conclusion
Probably businesses are
blurred with both the
concepts of web development
and web design ,
but it has to be kept in the
mind that both the jobs cover
the different domain.