After remove Yandex search from http://poplauki.eu from index back boilerplate website version.
Second bad thing is large bandwitch on first load – about 1.5 Mb. It to large for simple 5 page site.
Fix side menus for mobile browsers.
So ended experiments with personal website builded with React.
The Laws of Computing….. from source
First law – The Computer is always right.
Update SEO of the main page poplauki.eu by https://github.com/h5bp/html5-boilerplate/blob/5.3.0/dist/doc/extend.md
Add Twitter and Facebook card
Add separate meta tag to detect mobile device and redirect to mobile website version