I did this assessment: Challenge: Mozilla splash page - Learn web development | MDN
My code is here: https://codepen.io/user4592357/pen/JjGBPQK
P.S. The panda art direction doesn’t work properly with this link (works find locally), I guess due to this reason (excerpt from above linked Mozilla page):
To properly test the
srcset
/sizes
examples, you’ll need to upload your site to a server
Please review it.