css first list item, but not nested ones

[mickd_vbulletin3_import39044]

I have\[code\]<style>li { font-size: 80%;}</style><ul> <li> level1 <ul> <li> level2 <ul> <li>level3</li> </ul> </li> </ul> </li></ul>\[/code\]I want all the the text in the three \[code\]<li>\[/code\]'s to be the same but they get smaller, how do I style all of them as \[code\]font-size: 80%\[/code\]?EditIt would be better not to add classnames because I'm considering using markdown to preprocess the nested bullets (making it difficult to affect the html output)