How can I make my titles on one line?

Please help, I've tried everything and on some of my forms, some of the titles take up two or three lines when there is room to stretch across the screen like the other titles.

In the attached form, there are three fields near the bottom that have stacked titles. Thank You! 

Please try inserting the below CSS to your Custom CSS field:

#label_19 {

    width: 486px!important;

}

#label_20 {

    width: 486px!important;

}

#label_21 {

    width: 486px!important;

}

It would look like this:

Let us know how it worked.

Thank you!