More tag messed up sidebar on homepage

Hi I included ‘More’ tags in my posts today and suddenly the sidebar changed (fonts got too big). This only happens on the homepage, other pages are fine. Problem remains in default Kubrick theme. Suspect somethings has changed in the links, but not sure. Also suspect: a <li class="pagenav" in sidebar that does not show up in the stylesheet.
Anyway, help appreciated. It’s all on https://www.hansvandenberk.com.