I did a test using a website has css menu drop down and I found the answer.
Record your script clicking on the css menu (each one) to get the element and after, change the command "click" to "verifyText". After that, set the field value (Selenium IDE) the text that you can verify (e.g.: Trial, Invoice and Portal).
I did this:
- 1st field: Command
- 2nd field: Target
- 3rd field: Value
> verifyText | css=li.has-sub > ul > li > a > span | Trial > verifyText | //div[@id='cssmenu']/ul/li[2]/ul/li[2]/a/span | Invoice > verifyText | css=li.last > a > span | Portal