[Solved] How to align center an image in a post

Hi @alejandro-plans-beriso,

Please use the following CSS code:

#wpforo-wrap figure[data-attachids] {
   display: flex;
   align-items: center;
   justify-content: center;
}

The CSS code should be added in the "Custom CSS code" textarea, located in the Dashboard > Forums > Settings > Style Tab.  

Please don't forget to delete all caches and press Ctrl+F5 (twice) on the frontend before checking to reload the updated CSS file.