Rollover Css

Just putting it forward.

But how would i do some thing like a roll over Css style With flash:


.menu {
	display:block;               
                color:0x000000
}

.menu a,.menu a:link,.menu a:visited,.menu a:active {
	display:block;                
                color:0x000000
}

.menu a:hover {
	display:block;
                textDecoration:underlined;
                color:0x0099FF
}

this is the css rollover i would like to use