Hamburger Menu

[vitaliyhere]

As a user I to want to see the Hamburger Menu so that I could open it and navigate through the pages of the site

Preconditions.
User is on the site.
Hamburger Menu (three bars) is displayed in the Header(#203 )(design is here).

Requirements:

1. Hamburger Menu should be clickable.
   2.1. Navigation menu should appear down vertically when user clicks on Hamburger Menu.
   2.2. Selected page link named "Головна" should be highlighted in bold letters by default .

3. Navigation menu should contain page links with following names: Головна, Матеріали, Автори, Про платформу, Правила користування, Контакти.

4.1. Page links should be clickable and redirect user to the page corresponding with its name when user clicks on the page link.
4.2. Navigation Menu should disappear when user clicks on the page link.
4.3. Navigation Menu with the corresponding highlighted name of the page in bold letters should appear when user clicks on Hamburger Menu again.
5, Navigation Menu should disappear when user clicks on the visible part of the site.

Acceptance Criteria:

1. User should be able to see the navigation menu appearing down vertically when he/she clicks on hamburger menu.
2. User should be redirected to the page corresponding with its name when he/she clicks on the page link.
3. User should be able to hide navigation menu.

Epic #205