Blog post display on mobile looks funky

Hi there,

I just set up a site at http://www.nativerootsradio.com, with the blog grid display on the homepage. It looks great on the computer, but on mobile, the video and content sections of the post are separated. I am wondering if you can help troubleshoot this css / display issue? It appears to be a problem with the Highend 3.2 theme styles.

Here are some screenshots on mobile:
http://www.nativerootsradio.com/wp-content/uploads/2019/03/nrr-image1.jpg
http://www.nativerootsradio.com/wp-content/uploads/2019/03/nrr-image2.jpg
http://www.nativerootsradio.com/wp-content/uploads/2019/03/nrr-image3.jpg

Thanks so much,

Devon