How to hide "Create new dashboard button" in an app?

[Applegreengrape]

I am creating an App on Splunk and need to hide "Create new dashboard button" from the app users.

I tried editing the dashboard.css, but it doesn't work.

D:\Splunk Enterprise\etc\apps\my_app\appserver\static

.btn-group:first-child{

display:none;

}

I restarted Splunk, but that button is still there...

[jkat54]

For me it is called .btn:first-child 

Also this is the html <button class="btn btn-primary add-dashboard" ">Create New Dashboard</button>

so this should work
.btn-primary {
display: none;
}

Also you might get away with something like this:

   <![CDATA[
    <style>
    button[class*=add-dashboard]{ display:none; }
    </style>
   ]]>

[Applegreengrape]

where should the html stored? there is one default.xml in the local\ui...do you mean that one?