Is there any one to help just right now

HTML-CSS
1

Hi guys how can i extract or get or make a nav bar exactly like the one in this site ?

https://smartwatch.chayns.net/

this is what i built till now

https://jsfiddle.net/hussainruhollah/rgnk7qvL/5/#&togetherjs=1k329LRdnI

2

take a look at this web page for inspiration

3

its nice but i need to make menu