Correct my text, please! Today, In IT sphere essentially popular are web development. Not so far web developers' qualification was based on knowledge of PHP programming language and ability to mount some components to revive the internet browser's pages for user experience pleasure. All things became complicated for developers with boost of mobile's popularity. Today mobile industry requires more tough condition for a modern website. The speed of response and usability of the interface on small devices has become most valuable attributes of any modern site. Mobile devices changed the accents in web developing. Today PHP developers are not so versatile as before. They need to study new technologies for being up to date in web development.