yii CAutoComplete css

To chose higlight in dropdown list use this css^

//redefine color of selected item in dropdown list
.ac_over{
 background-color:#bb0000;
}

CAutoCoplete has class names like this
<li class="ac_even ac_over">...
That's mean that this element has 2 classes at the same time (separatede by space): ac_even and ac_over

Didn't know this trik before :)