ejbatu
You can follow this tweak:
Go to file: /templates/ja_teline_v/tpls/blocks/topnav.php
Change this line:
<div class="t3-topbar">
to:
<div class="t3-topbar" data-spy="affix" data-offset-top="70">
Next, open the custom.css file and change the custom css that you applied for mainnav before to:
.t3-mainnav.affix {
width: 100%;
z-index: 999;
top: 48px;
}
.t3-topbar.affix {
width: 100%;
z-index: 100;
}