Popularity of different multimedia devices grows every day. Possibility of Internet connection by means of phone won’t surprise anybody today.
With the help of smartphones, tablets and other similar devices you can find any information you need on the network. This removes necessity to be attached to a specific workplace.
This situation forces web developers to create such projects which will be suitable for viewing on any device.

When the client comes to the web developer and order a website, he assumes receiving the maxi-mum return and profit from this site. It’s not a secret that bulk of people use mobile devices and tab-lets for Internet surfing. Even notebooks fade into the background. Development of electronic tech-nologies reached such level that it is possible to go on-line even from a running track. You can’t create a separate version of a website for each device. It is impossible and simply impractical. But why should a customer lose clients that use other devices? Responsive web design can solve this problem.
Responsive web design is a special approach of resource creation. It assumes that design should adapt the layout to the viewing environment. Responsive web design assumes usage of the specially prepared grids and prototypes. It is also important to use css correctly that is responsible for site structure of a site across a wide range of devices.
In case of display on different devices the site has to change its resolution and automatically resize pictures and videos, and also consider possibility scripts execution. In other words, a website has to provide an optimal viewing experience. It allows removing a necessity of developing separate versions of the web site for each device appearing at the market.

Advantages of Responsive web design
Money saving is one of the principal advantages of responsive web design. Before the adaptive web design became popular, companies that wanted their site to adapt to the viewing environment had to order few versions of a site according to a display resolution. Creation of one site is quite expensive, and several versions of the same site will cost a pretty penny. Thus it will be necessary to pay for support and editing. Now companies and designers can breathe a sigh of relief because it is possible to create a web resource that works perfectly at all types of devices. Certainly it saves a lot of finance.

Time saving is an essential plus of the adaptive web design. You don’t have to waste time on development, coordination and testing of additional versions. The unique version of a site created with adaptive web design will be suitable for all devices. Simply install the update on the resource. You can spend the released time doing more useful things.
Responsive web design makes SEO promotion easier. Naturally, the promotion one website is much simpler than its several versions. The number of people using their smartphones and tablets to access the Internet doubles every year. It provides a good traffic for a site.
Sites that use adaptive and responsive design are very competitive because these technologies are only gaining popularity.

Convenience is very important for potential clients. If they can use your resource any time they want and with the help of any device they will visit this site more often than competitors’ resource.

Several methods of Responsive Web Design
The basic principle of the adaptive web design is the usage of relative units, rather than absolute units. It allows resizing elements depending on screen size of the device.
Besides, there are some more techniques. For example, site design with the help of fluid grid. New HTML5 and CSS3 technologies allow to display the site on the width of the browser.

One of the important elements of responsive web design is operation with images. It is possible to size the picture according to screen size by two methods. The first is scaling, i.e. height and width specifying in the relative values.Thus the image will change the sizes depending on the browser size. The second method is picture cropping. It is necessary to use special css property for its application. If the window’s size changes the picture is cut off at the edges, leaving the given section of the image.

An indispensable feature of the responsive web design is a usage of css @media rule. It allows setting necessary style descriptions for certain types of devices. Besides, it is possible to set specific conditions, for example, the maximum or minimum width of the screen. Thanks to @media you can customize any unit under different screen resolutions.The responsive and adaptive web design gains more and more admirers every day. The necessity this technology is obvious. That is why different useful assemblies and plug-ins appear on a network every day.