Page title

hi support,
i am a beginner. learning wordpress by my self.

i have a issue.
all of my page titles got large in size. eg. “category>government”

copied from google chrome inspect:

<h1 class=”fittexted_for_page_title” style=”font-size: 20.8px;”><i class=”fas fa-folder-open”></i>Category: <span>Government </span></h1>

i want font size “16px”

“.page-title” is fine, it is 16px
but “h1.fittexted_for_page_title” is more than 20px which looks weird

how to do this
please help.

The page I need help with: [log in to see the link]