currently is working similarly in your website!!! did you update it now?
Yes but it stays a little low from the upper most part. It should stick to the upper most part when the user has scrolled past header of the website.
See the origin website. There, it moves till the upper header is gone from scroll area and then it sticks there just a few pixels below the upper most part of page.
EON11-S Custom Gaming Laptop Product Features and Details | ORIGIN PC
The difference is noticeable.
Ok I just saw that the CSS value changes dynamically from
position:absolute; top:150px;
to
position:fixed; top:15px;
I guess javascript is used to change is dynamically.
It just counts the length scrolled in pixels and then applies second style to the element.