how to put border-bottom in navigation bar active button??

[pritu patel]

I am using navbar I want border bottom with red color on active button.
But i have no idea that where to write this code??

[Nikita]

Hi,

You should use such a code to add underscore for mobilenavbaritem component:
Appery("mobilenavbaritem").css("border-bottom","1px solid red");

[pritu patel]

no it's not affecting

[Nikita]

Hello,

On what event do you invoke this code? Is there in navbar the button with name "mobilenavbaritem"?