Thanks It worked!

I also had to add the following css

#tabnav ul li#tabnav-search input {
    -moz-transition: all 0.2s linear 0s;
    background: none repeat scroll 0 0 #6B7C86;
    border: 1px solid #5C6C75;
    border-radius: 15px 15px 15px 15px;
    -webkit-border-radius:15px 15px 15px 15px;
    -moz-border-radius: 15px 15px 15px 15px; 
    border-radius:15px 15px 15px 15px;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.02) inset;
    color: #484848;
    padding: 2px 4px;
    width: 100%;
    z-index:103; /* this is higher then the dropmenudiv */
    position:relative;
    background: url(https://static.jboss.org/theme/images/common/ico_searcharrow-dark.png) no-repeat top right #6b7c86;	
}

Pull Request Updated

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira