BEMINFO-784 — Рефакторинг шапки примеров

![2014-12-29_1647](https://cloud.githubusercontent.com/assets/1333220/5569077/6782b4e4-8f7a-11e4-9828-3ac12b4cf499.png)

I think, that much better use multiplier values for line-height `1; 1.5; 2; etc` that lock values on px