Clarify documentation for icons

Change-Id: I3452366505bde7a75a6a922138daa6a19a235d20

diff --git a/resources/src/mediawiki.ui/components/icons.less b/resources/src/mediawiki.ui/components/icons.less
index bf8e41e..d85cc98 100644 (file)
--- a/resources/src/mediawiki.ui/components/icons.less
+++ b/resources/src/mediawiki.ui/components/icons.less
@@ -16,7 +16,12 @@
 // To use icons you must be using a browser that supports pseudo elements.
 // This includes support for IE8.
 // http://caniuse.com/#feat=css-gencontent
-// Browsers that do not support either of these selectors will degrade to text only.
+//
+// For elements that are intended to have both an icon and text, browsers that
+// do not support pseudo-selectors will degrade to text-only.
+//
+// However, icon-only elements do not yet degrade to text-only elements in these
+// browsers.
 //
 // Styleguide 4.