On this site, if I inspect "What We Do", I see the HTML code:
<a title="What we do – Mad Hat Media" href="http://test.doig.com.au/MHM/services/" class="sf-with-ul">What We Do<span class="sf-sub-indicator"> »</span></a>
with CSS code:
.menu li a .sf-sub-indicator, .menu li li a .sf-sub-indicator, .menu li li li a .sf-sub-indicator {
background: none;
content: '»';
color: #622C82;
}
I can't see why the content: '»' does not display. The CSS element has a width and a colour.
What is missing are the drop down indicators (indicated by the green arrows in the screen shot below)
Help appreciated.

contentis an attribute for pseudoelements::afterand::before, not for plain css selectors