avatar display on mobile

Hi,

Hope you can help, I had a look through the forums and the support pages on the site but can’t see anything similar. I’m guessing I have a setting wrong somewhere…

Working on a dog charity site, it’s almost ready to go live, but I noticed problems with the user avatar / thumb on responsive, it sits on top of the post. Looking at inspect element it seems to be a position issue? Is there any way to fix this, or will I just need to hide on resposnsive?

I have some screen grabs which may help.
https://www.dropbox.com/s/4vl78nniy4ik0e4/post1.png?dl=0
https://www.dropbox.com/s/8pu1x6vgory1528/post2.png?dl=0
https://www.dropbox.com/s/ae79l6zk417jk0p/avatar-code.png?dl=0

Any help greatly appreciated!

Thanks