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https://htmlbook.ru/css/filter

https://developer.mozilla.org/ru/docs/Web/CSS/Reference/Properties/filter

https://www.w3schools.com/cssref/css3_pr_filter.php

https://www.schoolsw3.com/howto/howto_js_filter_elements.php

https://www.elastic.co/docs/reference/text-analysis/analysis-htmlstrip-charfilter

https://www.w3schools.com/howto/howto_js_filter_elements.asp

https://learn.microsoft.com/en-us/previous-versions/windows/desktop/indexsrv/html-filter

https://www.madcapsoftware.com/blog/table-filtering-html/

https://okapiframework.org/wiki/index.php/HTML_Filter

http://htmlpurifier.org/