page content extend over sidebar problem

Hi guys, I had been searching the pass two days for solutions but no luck for me.
I try to make a new page. But I found out that content that I written will become very long. Eventually extending to the very end of my browser. Can you guys help me to point out what is the problem causing this?I'm a newbie in programming.
I am using a purchase theme, Avada 3.0. Had email the developer too but no answer from them.
Thanks.

It does that on any site if you don't use actual words. Any time you string letters together like that they will go outside of divs. Just drop in some lorem ipsum text, that's what it's used for.

Omg...I am so stupid...
Thanks Flexnds...you are saving my world...
It works...lesson learned here.

i think problem is with css container ... text should warp

something like this will prevent extending content ...