diff --git a/assets/css/datepicker-kv.css b/assets/css/datepicker-kv.css
index 50a6c51..58bf29d 100644
--- a/assets/css/datepicker-kv.css
+++ b/assets/css/datepicker-kv.css
@@ -15,5 +15,8 @@
 }
 .input-group.date.disabled  .input-group-addon .glyphicon {
     cursor: not-allowed;
-    color: #777;
+    filter: alpha(opacity=65);
+    -webkit-box-shadow: none;
+    box-shadow: none;
+    opacity: .65;
 }
\ No newline at end of file
diff --git a/assets/css/datepicker-kv.min.css b/assets/css/datepicker-kv.min.css
index 09f9eb3..b11af2e 100644
--- a/assets/css/datepicker-kv.min.css
+++ b/assets/css/datepicker-kv.min.css
@@ -9,4 +9,4 @@
  * Author: Kartik Visweswaran
  * Year: 2014
  * For more Yii related demos visit http://demos.krajee.com
- */.datepicker{z-index:1151 !important}.input-group.date.disabled  .input-group-addon .glyphicon{cursor:not-allowed;color: #777}
\ No newline at end of file
+ */.datepicker{z-index:1151!important}.input-group.date.disabled .input-group-addon .glyphicon{cursor:not-allowed;filter:alpha(opacity=65);-webkit-box-shadow:none;box-shadow:none;opacity:.65}
\ No newline at end of file