Responsive Stats preview card using Flexbox and filter properties

It wasn't a very difficult challenge but there are still a few questions:

• I have used several h2 tags for each stat box, was this the best way to do it ? I don't know if using <h2> in this way is allowed

-I have used an association of filter properties to make the hue-rotate() work, but I don't know if we can do this another way ( like using background-color or something else ).

That is all, have a nice day !