Hi Timo,

1. First make sure that logo image it's not smaller than 300px (width) and not wider than 600px - longer doesn't make sense anyway.
2. By default header column has two columns 2,10 (Bootstrap) : 2 for logo and 10 for menu.

If you want to make logo wider/bigger, you have to change header grid from 2,10 to 3,9 or 4,8.

In Templates - Floox Default - "Layout" tab > Header row > Add columns > Save settings

3. Make sure that you are doing changes in Template styles that is your default for all your pages.

Click here

if you want have different header gird than you can select. Summary must be always 12 (!)

• 4,8
• 5,7
• 6,6

etc.