li.lang-en-only, span.lang-en-only {display:none;}
html[lang="en-GB"] li.lang-pl-only, html[lang="en-GB"] span.lang-pl-only {display:none;}
html[lang="en-GB"] li.lang-en-only {display:list-item;}
html[lang="en-GB"] span.lang-en-only {display:inline;}