1 files changed, 19 insertions, 8 deletions
diff --git a/xstatic/pkg/bootstrap_scss/data/scss/bootstrap/_component-animations.scss b/xstatic/pkg/bootstrap_scss/data/scss/bootstrap/_component-animations.scss
index 186f121..86632fd 100644
--- a/xstatic/pkg/bootstrap_scss/data/scss/bootstrap/_component-animations.scss
+++ b/xstatic/pkg/bootstrap_scss/data/scss/bootstrap/_component-animations.scss
@@ -1,18 +1,29 @@
-// COMPONENT ANIMATIONS
-// --------------------
+//
+// Component animations
+// --------------------------------------------------
+
+// Heads up!
+//
+// We don't use the `.opacity()` mixin here since it causes a bug with text
+// fields in IE7-8. Source: https://github.com/twitter/bootstrap/pull/3552.
 
 .fade {
-  @include transition(opacity .15s linear);
   opacity: 0;
+  @include transition(opacity .15s linear);
   &.in {
     opacity: 1;
   }
 }
 
 .collapse {
-  @include transition(height .35s ease);
-  position:relative;
-  overflow:hidden;
+  display: none;
+  &.in {
+    display: block;
+  }
+}
+.collapsing {
+  position: relative;
   height: 0;
-  &.in { height: auto; }
-}
-\ No newline at end of file
+  overflow: hidden;
+  @include transition(height .35s ease);
+}