Help with unwanted line around image

I need help with an unwanted line around an image on top.
I have an png on top of an image slider, it’s like the png doesn’t want to go out all the way in the divblock. I can’t se this in preview mode, only when I inspect the site I see this.
Can someone help me to fix this?

Here’s my link.

Here is a screenshot on the problem:

Hello @sandrarunbert, did you fix your problem already? I checked your site on both Chrome and Safari and I did not experience the lines around the PNG.