diff --git a/themes/bootstrap/scss/_navigation.scss b/themes/bootstrap/scss/_navigation.scss
index 8877d0fe8b..22fe87b7b6 100644
--- a/themes/bootstrap/scss/_navigation.scss
+++ b/themes/bootstrap/scss/_navigation.scss
@@ -357,32 +357,6 @@ li.fast_filter {
   }
 }
 
-// IE10+ has its own reset X
-html.ie {
-  li.fast_filter {
-    span {
-      display: none;
-    }
-
-    input {
-      padding-right: 0.2em;
-    }
-  }
-
-  &.ie9,
-  &.ie8 {
-    li.fast_filter {
-      span {
-        display: auto;
-      }
-
-      input {
-        padding-right: 1.7em;
-      }
-    }
-  }
-}
-
 #navigation_controls_outer {
   min-height: 21px !important;
 
diff --git a/themes/original/scss/_navigation.scss b/themes/original/scss/_navigation.scss
index 65e94a7ed8..64fca05625 100644
--- a/themes/original/scss/_navigation.scss
+++ b/themes/original/scss/_navigation.scss
@@ -332,26 +332,6 @@ li.fast_filter {
   }
 }
 
-html.ie {
-  li.fast_filter span {
-    display: none;
-  }
-
-  &.ie9 li.fast_filter span,
-  &.ie8 li.fast_filter span {
-    display: auto;
-  }
-
-  li.fast_filter input {
-    padding-right: 0.2em;
-  }
-
-  &.ie9 li.fast_filter input,
-  &.ie8 li.fast_filter input {
-    padding-right: 1.7em;
-  }
-}
-
 li.fast_filter.db_fast_filter {
   border: 0;
 }
diff --git a/themes/pmahomme/scss/_navigation.scss b/themes/pmahomme/scss/_navigation.scss
index 18e529f23e..2fa702e32f 100644
--- a/themes/pmahomme/scss/_navigation.scss
+++ b/themes/pmahomme/scss/_navigation.scss
@@ -343,32 +343,6 @@ li.fast_filter {
   }
 }
 
-// IE10+ has its own reset X
-html.ie {
-  li.fast_filter {
-    span {
-      display: none;
-    }
-
-    input {
-      padding-right: 0.2em;
-    }
-  }
-
-  &.ie9,
-  &.ie8 {
-    li.fast_filter {
-      span {
-        display: auto;
-      }
-
-      input {
-        padding-right: 1.7em;
-      }
-    }
-  }
-}
-
 #navigation_controls_outer {
   min-height: 21px !important;