<script type="text/javascript">
function cookCopy()
{document.cookie="helper=not"}
window.onunload=cookCopy
function helpCss()
{document.cookie="helper=letcopy"
var alls=document.getElementsByTagName("body")[0].getElementsByTagName("*")
var e=0
for (e=0; e<=(alls.length-1); e++)
{
var styl=new Array()
var styl2=new Array(0)
var k=0
styl[0]=alls[e]
styl2.splice(0, 0, makingCss(styl[0]))
k=1
while(k<=10)
{styl[k]=styl[k-1].parentNode
if (styl[k].nodeName=="BODY")
{break}
styl2.splice(0, 0, makingCss(styl[k]))

k=k+1}
alls[e].title=styl2.join(" ")
}}

function makingCss(to)
{if (to.id)
{if ((to.id.indexOf("forum")!=-1)||(to.id.indexOf("category")!=-1))
{if (to.className.indexOf(" ")!=-1)
{var ret="."+to.className.substr(to.className.lastIndexOf(" ")+1)}
else
{var ret="."+to.className}}
else
{var ret="#"+to.id}}
else if ((!to.id)&&(to.className)) 
{if (to.className.indexOf(" ")!=-1)
{var ret="."+to.className.substr(to.className.lastIndexOf(" ")+1)}
else
{var ret="."+to.className}}
else if ((!to.id)&&(!to.className))
{var ret=to.nodeName.toLowerCase()}
return ret}

</script>
<input id="csshelper" type="button" value="Помощь в css" onclick="helpCss()" />

https://merelleyne.rusff.me/style/nevred/nevred.css  - для файла .css
https://merelleyne.rusff.me/style/nevred/nevred_cs.css - для файла _cs.css