Qtranslate Custom Font Per Language issue

[admin]

I am facing an issue with a wordpress website for a client who wants to set a custom font-family per each language

i am using Qtranslate plugin for wordpress to translate the content and i managed to this successfully ... i also use a plugin called Custom CSS for wordpress to apply CSS changes in the code

Problem is when i set the custom font using the code .. it sets the custom font for both language .. so kindly help me to fix this

My Custom CSS Code is

@font-face {
font-family: GEDinarOne-Medium; 
src: url('http://www.example.com/wp-content/themes/fonts/GEDinarOne-Medium.ttf'); 
font-weight: normal;}

:lang(ar) body, h1, h2, h3, h4, h5, h6, p, blockquote, li, a{
    font-family: GEDinarOne-Medium !important; 
  }