Dont bleed

Im trying to make my own ticketer and Im coming along, but I have 1 bug I cannot figure out a fix for. When the text is set to scroll it shows outside the container.

For example:-

However I want it to look like:-

I've put my code at https://jsfiddle.net/08mp9Lnn/ in the hope someone can help :-)

I know there are many ticketers out there which I could freely use, however none seem to do it exactly how I want it so decided to write my own, and its coming on quite nicely (if I could figure this 'bleeding' out).

Thank you in advance