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Implementing Adaptive Images

Images on websites can be adapted to both the screen resolution of the device for correct display on mobile devices and for high DPI screens for more detailed display. There are several options for implementing adaptive images, which are used by experts web agency WebiProg , to create websites on various platforms. The easiest way to implement adaptive images. In the simplest case, it is sufficient to use images that are either of the same size as the area they will occupy, or several times larger than this area, if adaptation to high DPI screens is required. The images in this case are proportionally scaled by means of CSS. The disadvantage of this method is the high volume of traffic necessary to load a page with a lot of full-color images (images with a small number of colors are usually compact enough even in high resolution). A flexible way to implement adaptive images with processing on the frontend. Using JS, we can find out the size of the viewport and the D...

Registration in Catalogs: Pluses and Minuses.

Today I would like to discuss think about registering a website in catalogs. Of course, at one time, directories were used by everyone, as a webmaster to increase the indicator of PR, and users, to find the right information. Now only high-quality promotion of sites can save a person who decided to open an online business . But those carefree times have long gone and now the effect of directories is the ranking of web sites or the increase in "puzomeres" is minimal, if at all. Nevertheless, let's try to understand what catalogs are and what they give to the sites registered in them. White catalog This is a directory that puts a direct link to your web site and does not require anything else from you. The best option for registration. Why is it beneficial for white catalogs? Basically, such directories earn on the sale of links and various types of advertising. Gray catalog The view of the directory, which requires a back link when registerin...