MediaWiki:SpoilerBlur.css

.spoilerblur { -webkit-filter: blur(2px); opacity: .40; display: inline-block; -webkit-transition: all 1s 0 linear; } .spoilerblur:hover { -webkit-filter: blur(0px); opacity: 1; text-shadow: 0 0 0 transparent; transition: all 1s; transition-delay: 0.5s; }