Landing Page "link" problem

Hi, i am trying to finish Landing Page (HTML) and i am stucked on 4th step. ( I can see at least three clickable elements inside the nav element, each with the class nav-link .)
And please help me with centring the video, except video all the elements can be centred but no video.
Thank you.

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36.

Challenge: Build a Product Landing Page

Link to the challenge:

You need to link to your Codepen with the project you have saved, the link you gave is for the starter project. Look in your Codepen Dashboard for the link.

i am sorry for the mistake, i have changed the link. thank you.

in your code you use class="navlink" which is totally not the same