Strange vertical lines. Noob question :)


#1

Hi all! i’m a newbie who tries to study web development and i’m trying atom.
I don’t know how to google it, but i have a little interface “problem” with atom.
As you can see, i have those 2 vertical line on my 2 panels. What does it mean?

Thank you!!


#2

#3

Thank you :slight_smile: !