Remove Homepage Image on Mobile Version only

Can someone help me to input a code that removes an image from my homepage, but only for mobile version.

Check my homepage: supersizesocial.com

The first thing you see at the top is our big logo next to the website title / subtitle.

This is just a simple image block next to a text block.

The image is our logo. It looks great on desktop but on mobile the logo appears underneath the text and doesn't look very good. I think it's best to just remove this logo image on mobile version all together.

Can someone provide code on how to do this? When I try to remove it on the mobile version editor, it removes it on both mobile and desktop. Am I doing something wrong? 

Add to Design > Custom CSS

/* remove image on mobile */
@media screen and (max-width:767px) {
div#block-dbbedb097b64bf313fc6 {
    display: none;
}
}

This worked, thanks so much!