Posting here because there are many of you who are much more well versed in the game than me…

Is there a way to have the post editor/active typing box be bigger when typing/editing? It is frustrating when editing a long post (such as my notes to myself or a item sale listing in the forums) that the actual box is so small on the screen. I have tried zooming out in the acutal page/browser but that doesn't resize the box. Am I missing something or is it just a static box size that is small?