1. Navigation grid – Wide desktop 1 Main navigation bar maximum width 890 px (= 4 content columns) 3 text columns, each 256 px wide 51 px margins in between text columns, containing a vertical dotted line Banner column, 200 px wide Fortum logo is on same level as the header links (from top).

2. Navigation grid - Desktop 2 Main navigation bar width 930 px (= content width) 3 text columns, each 218 px wide 32 px margins in between text columns, containing a vertical dotted line Banner column, 170 px wide Fortum logo is on same level as the header links (from top).

3. Navigation grid - Tablet 3 Main navigation bar width 740 3 text columns, each 218 px wide 33 px margins in between text columns, containing a vertical dotted line Fortum logo is on same level as the header links (from top).

4. Navigation grid - Phone 4 Navigation width 100% Text column width flows with browser window width, with 15 px left and right margins 54 px column on right for sub-menu open/close