The theme I made is broken, when I enable the "Optimize CSS files" option. I have cleared the cache, but the theme still doesn't work. under firefox and IE is ok. BUT UNDER chrome is unnormal How can I fix this?

i got the reason. in my css file, i have this style.

*{margin:0;
padding:0;
}

when enable the "Optimize CSS files" option the chrome can's use this style. how to make the chrome can use the style when enable the css optimization