adding links to code block images + change sizing in mobile view

Site URL: https://www.pillarsresearch.org/our-team

Hi -- I'm trying to figure out how to fix the mobile view of a certain page on my website. Specifically:

- Hyperlinking images in code blocks: I have images that preview a different image on hover. I want those images to be hotlinked to another page on the site. 

- Change sizing of those same images in mobile view: When you look at the website in mobile view, those images are very small and the buttons are very large.  I want to enlarge the images or, if that's not possible, decrease the size of the buttons. I've tried a bunch of different options shared in this forum, but I can't find anything that works on 7.1.

Help! The specific page is www.pillarsresearch.org/our-team

Thank you!!

#1. First, add this to Design > Custom CSS

a.tp-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

For first Code Block, edit this code

<center><div id="img-hover1"></div></center>

to this

<center><div id="img-hover1"><a href="https://google.com" class="tp-link"></a></div></center>

With second Code Block, edit code similar

<center><div id="img-hover2"><a href="https://google.com" class="tp-link"></a></div></center>

#2. Add to Design > Custom CSS

/* Our Team Image */
@media screen and (max-width:767px) {
[id*="img-hover"] {
    width: 100% !important;
    height: 300px !important;
    background-size: cover !important;
}
}