Hello @Arittra! I can only see two mistakes but apart from that, great job on the test
For the first task
The problem here is that you need to set a width and a height first, if you want CSS to be able to make your object fit in a specific way. If you don’t, CSS will choose them for you and for the case of a picture the width and height chosen are the width and height of the <img> element (which, in turn, are by default set to the width and height of the source picture).
If you go over the lesson related to this test once more you will notice that when object-fit is used, both width and height are explicitly set.
For the second task
You did great You just forgot a semi-colon after font-size: 100% which makes CSS absolutely ignore that line. This is, perhaps, the most common mistake.