Hi @alfred,

I this this CSS code should help you to solve the problem. 

@media only screen and (max-width: 700px) {
   #wpforo #wpforo-wrap .wpforo-content .wpforo-topic {
       display: flex;
    }
}
@media only screen and (max-width: 700px) {
   .wpforo-topic-info {
     padding-top: 0 !important;
     margin-top: 0 !important;
   }
}