Hallo,
I'm using Atahualpa 3.7.18 and something somewhere overrides my general text size settings in ""Overall Style & Config""->"Body, Text & Links".

I have quite slow internet connection, so when the page is loading, at first it shows correct font size, as set in Atahualpa "Overall Style & Config""->"Body, Text & Links", but when the page load completes, it changes to a small font.

A have set debugging ON, but have no experience to use this kind of tool. Can someone please take a look and direct me where can I find this other font setting?

The site is
http://www.obec-lopenik.cz/

Thank you

see the CSS Inserts' option

Hallo Juggledad,
I did! Even before I did wrote here.

I have this under "HTML HEADER"

<link href='http://fonts.googleapis.com/css?family=Kaushan+Script' rel='stylesheet' type='text/css'>

HTML Body

<div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.0";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

I don't think taht any of these should cause that trouble. What do you think?

HTML/CSS

h1 { font-size: 34px; line-height: 1.2; margin: 0.3em 0 10px; }
h2 { font-size: 28px; line-height: 1.3; margin: 1em 0 .2em; }
h3 { font-size: 24px; line-height: 1.3; margin: 1em 0 .2em; }
h4 { font-size: 19px; margin: 1.33em 0 .2em; }
h5 { font-size: 1.3em; margin: 1.67em 0; font-weight: bold; }
h6 { font-size: 1.15em; margin: 1.67em 0; font-weight: bold; }

#header_logo_overlay img{
position: absolute;
left: 30px;
top: 30px;
}

/* ================================================== */
/* CSS for setting menu padding                       */
/* ================================================== */
ul.rMenu li {
	padding-top: 0px;
	margin: 2px 7px 2px 7px;
}
ul.rMenu-ver li {
	padding-top: 0px;
	margin-top: 4px 5px 0px 0px;
}


/* ================================================== */
/* CSS for bold text in Page Menu                     */
/* ================================================== */
/* div#menu1 ul.rMenu li a:link,
div#menu1 ul.rMenu li a:visited,
div#menu1 ul.rMenu li a:hover,
div#menu1 ul.rMenu li a:active {font-weight: bold;} */


font-family: 'Kaushan Script', cursive;

Disable ALL your plugins and check it again.

Hi,
even with all plugins disabled it is the same. Smaller text size and different font, than in Atahualpa Overall Style & Config -> Body, Text & Links

After the test I immediately re-activated NextgenGallery, Ajax Event Callendar and Ultimate Tag Cloud, other plugins are off.

It's caued by css applied by the class 'fb-reset' on the <body...> statement. I would that is set by a sharing plugin (fb = Facebook ??)