Improve design of site-example

[ihorzenich]

Create a „redesign“ for our „Holy-grail example“ in some modern, 2017-year like look.
Implementation of this will be an case study for restyling site using different methodologies.

[AleshaOleg]

@ihorzenich then the old markup (which is ongoing), we will leave a separate branch?

[ihorzenich]

@AleshaOleg yes, and we should think about - how to demonstrate problems we're going to face working on it for each methodology.

[idmytro]

https://philipwalton.github.io/solved-by-flexbox/demos/holy-grail/

[AleshaOleg]

@cisar great example, would you like to implement new markup at least for one of methodology? Also, what about menu tabs? Is any design for them?

[idmytro]

default bootstrap 4 https://getbootstrap.com/docs/4.0/components/navs/#vertical is ok

[AleshaOleg]

yes, it should be ok.