What do I need to override to increase this metadata font size in time stamp?

Site URL: http://thetechnologyletter.com

Hi, folks. I'm trying to change this font size in summary blocks for primary metadata to not be so small. I'd like it to be more like the primary metadata time stamp in blogs display, which is a larger size. Do I have to override something else on the summary block or the particular page? See screenshot. I have already tried adding to the particular #collection page the following.

a.summary-metadata-item {
    color: #1470af !important;
    font-family: anziano;
    font-weight: 400;
    font-style: normal;
    letter-spacing: 0em;
    text-transform: none;
    line-height: 1.6em;
  font-size: calc((1.6 - 1) * 1.2vh + 1rem) !important;}
 

But that didn't change the font size. So, I'm guessing a relative font size needs to first have a different #collection font size or summary block size. Any thoughts much appreciated.

Can you share link to page in screenshot? I don't see Summary Block on homepage