Hello Fabio,
You have two ways to specify the CSS. I have checked your screen shot.
1. Using the Id of the container (by matching partially)
[id$="MainContent"] {
word-wrap: break-word;
}
This one is more appropriate.
2. Option 2:
div.content-middle {
word-wrap: break-word;
}
Please add either of this (option1 or option2 ) in the CSS of the webscreen.
That should solve the problem.