An empty <span> in the Navigation Menu code fails the html validation test in my menu.
An example is at www.cicero.co.uk/english/Adults/Accommodation_new.php
for which html validator shows 10 warnings, each of them an empty <span> in the navigation menu.
Can this be avoided? Any tips will be very welcome!

Hello Christpher,

The

<span class="sub_right"></span>

and

<span class="sub_down"></span>

are needed for your main menu items. The sub_down class shows a down arrow and the sub_right class shows a right arrow.

Thanks Teodor. I understand the reason for this, the problem is that the resulting code is an empty <span> tag which is not valid W3C code. Having got our entire site "HTML Tidy", we now have warnings on every page because we are using Universal CSS Navigation Menu!