Problem with Home Featured Content widget

I’m trying to put a video into Home Featured Content widget, but video doesn’t stay within the boundaries of the widget. I was trying to change the size and dimension, but it still goes over the widget. How can I make the video stay inside the widget? May be I should somehow make Home Featured Content widget smaller? Or do something else? Please help.

Here is the link of the website where I have a problem: https://overcomethebarrier.com