Menu Hover Text Colour

Hi,

Please can you tell me how to change the colour of the menu text as you hover over it, as per the demo site http://demo.styledthemes.com/demos/puresimple/.

I thought it would be in this piece of code, but I can’t get it to work.

‘.primary-navigation li a:hover {
background: #080d07;
}
.primary-navigation li li:hover > a,
.primary-navigation li li.focus > a,
.primary-navigation ul ul a:hover,
.primary-navigation ul ul li.focus > a {
background-color: #080d07;
}’

I’m pretty sure this is really simple!

Thanks

Sarah