I have a problem with CSS. When I try to do
-webkit-filter: blur(1px); -moz-filter: blur(1px); -ms-filter: blur(1px); -o-filter: blur(1px); filter: blur(1px)
You can do an SVG blur filter in Gecko-based browsers. But the thing you have above is WebKit-only and not standardized, so no one else supports it.