I completed values and units task: https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Values_tasks
Task 1: https://codepen.io/user4592357/pen/abNNWrm
Task 2: https://codepen.io/user4592357/pen/ZEWWKdY
Task 3: https://codepen.io/user4592357/pen/XWddRvX
Please review it, thanks.