AIO-template with font awesome and default font

Need a hand with this:

Have four text parts in four languages. This textparts get filled from custom fields. In custom fields I can assign CSS-classes

Every part should start with a icon from font awesome. This works fine:

class uk-icon-file renders the icon

But in combination with the class uk-h5 (with PT-Sans-font) the font awesome icon disappears.....(see attachment)

any hint.

Hello, sorry dont know anything about.
Maybe you should analyze the the source code
www.joomlaplates.de/support/dokumentation/template-bearbeiten