make long strings responsive

index.html

@@ -555,7 +555,7 @@ layout: default
 <!-- steps on manually disabling WRTC in Firefox -->
 <p>In short: Set "media.peerconnection.enabled" to "false" in "about:config".</p>
 <p><strong>Explained:</strong></p>
-<ol>
+<ol class="long-string-list">
     <li>Enter "about:config" in the firefox address bar and press enter.</li>
     <li>Press the button "I'll be careful, I promise!"</li>
     <li>Search for "media.peerconnection.enabled"</li>
@@ -564,7 +564,7 @@ layout: default
 </ol>
 
 <p>If you want to make sure every single WebRTC related setting is really disabled change these settings:</p>
-<ol>
+<ol class="long-string-list">
     <li>media.peerconnection.turn.disable = true</li>
     <li>media.peerconnection.use_document_iceservers = false</li>
     <li>media.peerconnection.video.enabled = false</li>