Report:Spam filter problems

Block #18461 on Battleborn Вики

 * Wiki: http://ru.battleborn.wikia.com
 * Page: http://ru.battleborn.wikia.com/wiki/Участник:MtMB/Черновик
 * Block ID: http://community.wikia.com/wiki/Special:PhalanxStats/18461
 * What were you trying to do?: I used link on picture stored on puu.sh for testing code in my "draft" page (w:c:ru.battleborn:Участник:MtMB/Черновик), spam filter notice appeared on next day I was doing new edits in it. I removed puu.sh links from "pre" blocks but filter won't let me save it, then I uploaded picture on wiki and changed links, in both Common.CSS and "draft" page but nothing changed with filter.
 * Signature: MtMB (talk) 14:53, October 11, 2016 (UTC)
 * Hello, are you by any chance trying to use  tags? 15:38, October 11, 2016 (UTC)
 * Hello. Yes, I'm trying to make images with CSS ":hoover" effect and link to a page on wiki, tag has "class" parameter. MtMB (talk) 17:42, October 11, 2016 (UTC)
 *  tags do not work on Wikia, so they are blocked as poorly made spam bots like to try them. You can have images link to a page by using the format Filename.ext . If that wasn't your intention, feel free to ask for help on the Community Central Forums to figure out an alternative. 18:17, October 11, 2016 (UTC)
 * Okay, thank you very much. MtMB (talk) 18:31, October 11, 2016 (UTC)