How to increase the width of the Text element?

Trying to create a document using the text element. How do I set the width so that it would fit nicely on A4 ? Thanks

I assume you're referring to this page: 

You can increase/decrease the width by inserting the below CSS in your Custom CSS Field.

div#cid_33 {

    width: 600px!important;

}

Here is how it works:

Let us know if this could work for you.

Thank you!