how did you reformat it?
Instead of the phrase, img sre=https://pbs.twimg.com/media/CxHASXxUsAAMuUp.png
I added this:
img height=500 src=https://pbs.twimg.com/media/CxHASXxUsAAMuUp.png
as always, you have the < and the > at each end of the phrase.
height=600 will make he image larger.
height=400 will make the image smaller
height=390 will make the image smaller yet. The numbers will allow you to get the exact size you want.
Always use the Preview function to see if you got the size right.