‘Fixed header’ and ‘over header image’ is not really working. Strange: when I open Help for developers in Chrome it does work but on my phone and my desktop without opening the help for developers it doesn’t work. Please help: what are I doing wrong?
I have the same symptoms.
Occurs when window size is less than 1153px.
At that time #site-header-main is position: relative
, And a gap of the header size setting occurs with #header-image-main-inside.