hi! That's my first time writing on the forum, and sorry if I did something wrong.
Let's go!

I use my Opera normally, but recently i notice a little and annoying bug, the attached images may help you understand.
And i dont know how i remove that!

Can anyone help me to remove this annoying bug?

In short, there is a line that follows the objects on the page and I can't remove it!

Thanks in advance to anyone who can help me and anyone who tries!