Remove obsolete `color` property from horizontal rule

Removing `color` property definition, which dates back to IE 5/Mac
support times.
`background-color` is sufficient in any of our basic supported
browsers.

Change-Id: I013b9c5bc614299c94bb733fc724148e5c7b1343

diff --git a/resources/src/mediawiki.skinning/elements.css b/resources/src/mediawiki.skinning/elements.css
index a33595c..5936c6f 100644 (file)
--- a/resources/src/mediawiki.skinning/elements.css
+++ b/resources/src/mediawiki.skinning/elements.css
@@ -108,7 +108,6 @@ img {
 
 hr {
        height: 1px;
-       color: #a2a9b1;
        background-color: #a2a9b1;
        border: 0;
        margin: 0.2em 0;