Web design is the considering needs of customers throughout the design process, from conceptualization to planning, build and completion.The design of your website is more important for conversions and it is marketing element. If design is not upto the mark, then you can't reach your customers and can't sell your products.

There are some basic principles that should be keep in mind before designing.
What are those principles,you will get know in the following article.
ablysoft.weebly.com/1/post/2014/01/top-web-design-principles-for-creating-user-friendly-platform.html