Hello,

1. To configure your header in default and fixed modes:
- for default position you should apply css styles directly to header container
- in case of fixed position you should use 'fixed-menu' class for header container which appears when scrolling down the page,
i.e. all your selectors should start from 'header.fixed-menu ...' + your element

2. You can use the following code to insert add button where you need applying css styles if necessary:
Code:
Only registered members can view the code.