cerulean, slate, spacelab: fix navbar dropdown for ie9

[bootswatch] / spacelab / bootswatch.less

diff --git a/spacelab/bootswatch.less b/spacelab/bootswatch.less
index 2f7ea40..26dea26 100644 (file)
--- a/spacelab/bootswatch.less
+++ b/spacelab/bootswatch.less
@@ -15,6 +15,7 @@
 
        .btn-shadow(@navbar-default-bg);
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.3);
+       filter: none;
 
        &-inverse {
                .btn-shadow(@navbar-inverse-bg);