Ionic Android Header Botton Color

Hi All,

Am a new bee to Ionic Framework, and trying to implement Ionic Android example provided at below.

Am trying to add Bottom Border Line to Bar Header, So added custom css to the file

/* Styles go here */
.bar-header {
top: 0;
border-top-width: 0;
box-shadow: 0px 2px 0px #ff0000!important;

Which works fine in simulator, But when Export to Android 2.3 OS application, the Css is not in effect.

Thanks in Advance