I need your help with two issues:
when scrolling down (in between the top and the first section), I’m getting a slight “jump” (before the header sticks to the top).
I need to have the top menu immediately sticked to the top, as soon as I scroll down.
In this page you can clearly see the jump, if you scroll slowly from the top: fly4fun.pt/os-nossos-saltos-tandem/
Can you help me?