For this, you'll have to modify the theme to reposition or enlarge them.
You can also adjust the CSS using the custom html/css page in the ACP.
It is up to @pichalite now.
Been thinking and I suppose it's best if I just use filter:messaging.parse as well for the shoutbox. That way it's also easily expandable by plugin 😄
On closer inspection might not be such a good idea as I originally thought 😄 Will be tricky with the uids, seeing as with shouts you only have 1...
Got it working 🙂
Maybe you can upgrade your nodebb.