bbpress responsive problem

Hi there,
I use bbpress as my site forum. In the case of desktop there is no problem but in responsive mode (mobile phone) avatar covers role of author. could you please suggest me a solution?
here is an example link:
https://www.ninitalar.com/forums/topic/%d8%b4%d9%88%db%8c%d9%86%d8%af%d9%87-%d9%84%d8%a8%d8%a7%d8%b3-%d8%a8%da%86%d9%87/