<span style="padding: 0 1em">
  [if-any logged_in_user]
    <mr-account-dropdown
      userDisplayName="[logged_in_user.email]"
      loginUrl="[login_url]"
      logoutUrl="[logout_url]"
    ></mr-account-dropdown>
  [else]
    <a href="[login_url]"><u>Sign in</u></a>
  [end]
</span>