WPML: Shortcuts instead of flags

Hi there

I am using the plugin WPML with the Theme Enfold.
I’d love to show only the shortcuts “DE, FR and EN” for the languages German, French and English. Currently I can only see flags.
This is my website: http://www.pakka.ch
I have posted my concern before and received this code as an answer:
.avia_wpml_language_switch li .language_flag img { display: none; }
.language_code { display: block!important; }

It worked quite well, but since the new version of Enfold it only works for the german version.
How should I proceed? SOS help!
Thanks in advance
Carolina