How to convert generated css?

Question

css

Hi everybody.
There is a css generated by the preprocessor, most likely SAAS, Less or Stylus (not known, since the client only has css). How can this css be converted back to source?
css piece:

[class~=effectbanner]:after,[class~=effectbanner] > [class~=image-wrap]:before,[class~=effectbanner]:before,[class~=effectbanner] > [class~=image-wrap]:after,[class~=effect] > [class~=image-wrap]:after,[class~=effect] > [class~=image-wrap]:before{position:absolute;}[class~=effectbanner] > [class~=image-wrap]:after,[class~=effectbanner]:after,[class~=effect] > [class~=image-wrap]:after,[class~=effect] > [class~=image-wrap]:before,[class~=effectbanner]:before,[class~=effectbanner] > [class~=image-wrap]:before{content:"";}[class~=effect]

@charset "UTF-8";.dropdown-over .dropdown-title a,.box-services h4 a{font-size:.1875in;}[class~=owl-theme] [class~=owl-controls] [class~=owl-nav] div:hover,[class~=tiva-slideshow-wrapper] [class~=tiva-caption] [class~=btn]:hover{color:white;}#top-header.top-header-fixed.fixed{position:fixed;}#all{overflow:hidden;}[class~=rtl] [class~=bannertext][class~=bannertext-1] [class~=box-homehtml] [class~=block-html]{padding-right:.3125in;}[class~=rtl] [class~=bannertext][class~=bannertext-1] [class~=box-homehtml] [class~=block-html]{padding-left:inherit;}a:hover{color:#e6c302;}[class~=tiva-slideshow-wrapper] [class~=tiva-caption]

Answer 1

there is no way to get the source, but you can still semantically parse the collected css and make it more or less readable scss
sebastianpontow.de/css2compass