Set background color for Jira Announcement Banner

stuartu

I have cloned our Jira Production environment, and want to place an announcement banner with a red background.

Can anyone advise the HTML text I would use to do this.

Thanks in advance.

Dieter

Place the following code in the announcement banner

<script>
(function($){
   $(document).ready(function(){
      $(".alertHeader").css("background-color","red");
   });  
})(AJS.$);
</script>