How to make a Code Block smaller on Mobile view on 7.0?

Hi All
I'd like to make a code block smaller when in Narrow view (Mobile) by about 60-50%... I've tried a few code snips like the below, with no luck! The code block is holding a scroll Lottie file I made.  Any help would be great. 

/* Mobile resize code block */
@media screen and (max-width:767px) {
div#block-62452260eb439022d3cd {
    width: 50%;
    margin: 0 auto;
}
}

The page is live and open  - https://intropic-info.io/pfi

Give this a try. It will bring the image to 50% on any device smaller than 640px. If you wish you can change the 640 to the 767 you have but Squarespace for this page looks like its breaking for mobile at 640px. This is only for the lotti custom code image your using.