How to remove CSS from a string?

I used the Sanitize Ruby stone with the following code:

result = Sanitize.clean(html)

It extracts content from the page, but I still have this CSS as a result of the disinfection. How can I get rid of it, so I have text on the page?

#fsb-social-bar { width: 100%; border-bottom: 1px solid #dbdbdb; border-top: 1px solid #dbdbdb; padding: 10px 0; margin: 0px 0 20px 0; float: left; background: #fff; position: relative; clear: both; } #fsb-social-bar a { border: 0px !important } #fsb-social-bar.fsb-fixed { position: fixed; top: -2px; z-index: 99999; } #fsb-social-bar .fsb-title { display: block; float: left; margin: 3px 20px 0 0; font-size: 16px; font-family: Arial, Helvetica, sans-serif; text-decoration: none; color: #333; } #fsb-social-bar .fsb-share-facebook { width: 120px; float: left; padding: 3px 0 2px; height: 25px; } #fsb-social-bar .fsb-share-facebook.fsb-hide-count { width: 44px; overflow: hidden; margin-right: 30px; } #fsb-social-bar .fsb-share-twitter { float: left; width: 135px; padding: 3px 0 2px; height: 25px; } #fsb-social-bar .fsb-share-twitter.fsb-hide-count { width: 61px; overflow: hidden; margin-right: 30px; } #fsb-social-bar .fsb-share-google { float: left; width: 105px; padding: 3px 0 2px; height: 25px; } #fsb-social-bar .fsb-share-google.fsb-hide-count { width: 33px; overflow: hidden; margin-right: 30px; } #fsb-social-bar .fsb-share-linkedin { float: left; width: 135px; padding: 3px 0 2px; height: 25px; } #fsb-social-bar .fsb-share-linkedin.fsb-hide-count { width: 61px; overflow: hidden; margin-right: 30px; } #fsb-social-bar .fsb-share-pinterest { float: left; width: 115px; padding: 3px 0 2px; height: 25px;} #fsb-social-bar .fsb-share-pinterest.fsb-hide-count { width: 43px; overflow: hidden; margin-right: 30px; } #fsb-social-bar .socialite { display: block; position: relative; background: url(http://www.example.net/wp-content/plugins/floating-social-bar/images/fsb-sprite.png) no-repeat scroll 0 0; } #fsb-social-bar .socialite-loaded { background: none !important; } #fsb-social-bar .fsb-service-title { display: none; } #fsb-social-bar a { color: #333; text-decoration: none; font-size: 12px; font-family: Arial, Helvetica, sans-serif; } #fsb-social-bar .fsb-twitter { width: 105px; height: 25px; background-position: -13px -10px; line-height: 25px; vertical-align: middle; } #fsb-social-bar .fsb-twitter .fsb-count { width: 30px; text-align: center; display: inline-block; margin: 0px 0 0 69px; color: #333; } #fsb-social-bar .fsb-google { width: 75px; height: 25px; background-position: -136px -10px; line-height: 25px; vertical-align: middle; } #fsb-social-bar .fsb-google .fsb-count { width: 30px; text-align: center; display: inline-block; margin: 0px 0 0 41px; color: #333; } #fsb-social-bar .fsb-google .socialite-button { margin: 0 !important; } #fsb-social-bar .fsb-share-google .socialite-loaded .socialite-button{padding: 2px 0 0} #fsb-social-bar .fsb-facebook { width: 89px; height: 25px; background-position: -231px -10px; line-height: 25px; vertical-align: middle; } #fsb-social-bar .fsb-facebook .fsb-count { width: 30px; text-align: center; display: inline-block; margin: 0px 0 0 52px; color: #333; } #fsb-social-bar .fsb-facebook .socialite-button { margin: 0 !important;} #fsb-social-bar .fsb-share-facebook .socialite-loaded .socialite-button {padding: 2px 0 0} #fsb-social-bar .fsb-linkedin { width: 105px; height: 25px; background-position: -347px -10px; line-height: 25px; vertical-align: middle; } #fsb-social-bar .fsb-linkedin .fsb-count { width: 30px; text-align: center; display: inline-block; margin: 0px 0 0 70px; color: #333; } #fsb-social-bar .fsb-linkedin .socialite-button { margin: 0 !important; } #fsb-social-bar .fsb-pinterest { width: 88px; height: 25px; background-position: -484px -10px; line-height: 25px; vertical-align: middle; } #fsb-social-bar .fsb-pinterest .fsb-count { width: 30px; text-align: center; display: inline-block; margin: 0px 0 0 50px; color: #333; } #fsb-social-bar .fsb-pinterest .socialite-button { margin: 0 !important; } #fsb-social-bar .fsb-clear { clear: both; } #fsb-social-bar .fsb-clear:after { clear:both; content:; display:block; height:0; line-height:0; overflow:auto; visibility:hidden; zoom:1; } @media (max-width: 768px) { #fsb-social-bar.fsb-fixed { position: relative !important; top: auto !important; } } Facebook2 Twitter1 Google+0 LinkedIn0 Pinterest0 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras at nisl auctor, dignissim odio vel, suscipit velit. Vivamus pretium velit quis sapien scelerisque ullamcorper. Vivamus ullamcorper lacus non magna suscipit laoreet. In hac habitasse platea dictumst. Nulla aliquam dolor nec neque auctor pretium. Nullam vitae enim nisl. In imperdiet lacinia nunc at congue. Aliquam posuere nulla vel ornare accumsan. Fusce vitae sapien et nulla fringilla congue quis eu tellus. Nunc vestibulum turpis eget convallis cursus. Integer ut sapien molestie odio interdum luctus. Vestibulum urna justo, sagittis ut sodales eu, rutrum a magna. Proin consequat convallis nibh vel semper. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Pellentesque eu purus quis massa lobortis eleifend.

The solution should work not only with this text, but also with any line that may have CSS. Thank you for your help.