How to change size of social icon CSS

Site URL: https://heptagon-bellflower-eysl.squarespace.com/config/settings/site-visibility

Hi !

Hi would like to make the Facebook icon in the footer bigger.

Seems easy, but I am not able to do it ..

Would you have custom code for that ?

Thanks a lot,

Add to Home > Design > Custom CSS

/* footer fb icon */
div#block-728d2369064e48791707 a {
    width: 100px;
    height: 100px;
}