Web design includes user guide, design, construction and layout of websites on the World Wide Web.
It is the task of a web designer to combine the technical possibilities, the desires and wishes of the client, and the needs of the visitors together and with all this it tries to create an appealing overall picture.
The presentation, the design and construction plays an important role for the successful mediation of the written text, information, the overall content.
If a website is well-structured, informative, and colors and pictures are well chosen, the website is interesting for the visitor and the contents are much more informative and easier to read. Web design ensures that surfing is fun, while it is still informative. If websites are nice to watch, have harmonic colors, and have a well designed structure and layout, visitors will stay and, maybe even more important, they will come again.

Web design does not only includes the design of a web page. The look is an important point, but so is the usability.
The navigation should fit the needs of as many people as possible.
The accessibility of a site should be ensured and you should make the website available for all Web browsers and all kinds of clients you want to visit your site.
It would be a big faux-pas if colorblind people would not be able to read any content on your website if you set the wrong contrasts or used suboptimal images.
There are always people who surf without JavaScript.
Is your site fully operational if this is turned off? If not, you should do something about it.
If you website appeals to blind people you shouldn't use Flash or just with content that is not essential. The Screen Reader of a blind person displays the plain text and flash elements are invisible.

Many generations of different browser types, such as Internet Explorer 4 or Netscape were programmed very differently but now with Mozilla Firefox and Internet Explorer 7 there is a widespreaded support available.
Actions that make up good web design are the layout of a website, clean structures, the titles and lists, markup, such as normal or bold type or the simple instructions for image formats.
The perception, the visual recording is fundamentally dependent on the visual communication.