Social Media Icons

Hi there,

Another question. I just added Social Media on the front page and would like to change the size of the icons. I have gone into the code and found this:

.social-widget li a::before {
font-size: 60px;
line-height: 1;
color: #fbb829;

I was fiddling with font-size numbers, but nothing is changing on the site. Please advise. My site is: https://www.thesterkenburgeffect.com.

Thanks!
Janell