Board Thread:Support Requests - Designing Your Wikia/@comment-4572247-20150627024737/@comment-9380534-20150627025254

Hey Abel!

Alright, so this is a combination of CSS and HTML, but it's not that complicated. :)

First, they put: .hoverimage img { opacity: 0.5 ; filter: alpha( opacity= 50 ) ; } .hoverimage img:hover { opacity: <span class="nu0" style="color:rgb(211,54,130);">1.0 <span class="sy0" style="color:rgb(0,170,0);">; filter<span class="sy0" style="color:rgb(0,170,0);">: alpha<span class="br0" style="color:rgb(0,170,0);">( opacity<span class="sy0" style="color:rgb(0,170,0);">= <span class="nu0" style="color:rgb(211,54,130);">100 <span class="br0" style="color:rgb(0,170,0);">) <span class="sy0" style="color:rgb(0,170,0);">; <span class="br0" style="color:rgb(0,170,0);">}

in their MediaWiki:Wikia.css (you can see it as the very bottom on that page).

Then, when they want the image to have the hover feature, they put.