Slider structure, bread crubs, start main section
Top slider fade slideshow, sidebar menu.
Change image srcset format for different screen width.
Height images in slider, change width slider if screen width < 1100px.
Merge pull request #3 from masha-padalko/Static_layout

Static layout
Fix slider imgs, made clone product item, sidebar active links.

Conflicts:
	css/sidebar.css
	css/slider-top.css
	img/sprite.png
	index.html