TOPIC: Change balloon width

Hello again, i want to ask if there is a possibilty to the set the width of the balloon on the map. I what to set the width to 60% because of the problem, that the closing-x is not shown and the useres have to scroll to close the balloon. Here is an screenshot of the problem:

Go to the layout settings and turn the div overlay - you can style it as you wish. The standard balloon is made from google's js and styling is not possible.