listing12-20_polish.css_extendingstyles

着几乎所有智能机厂商都将有自己配套的App Store,甚至并非智能手机制造商的三星也有意加入本次混战. 当然,我们也不能忘记苹果最先从iTunes中得到的灵感,从而带来了应用程序商店,一个正确

/* Extending styles can save you a lot of work
   and allows you to change many settings at once
   in one single place.
   Beware of image backgrounds and the like, however.
   These are instantiated several times when they
   are defined in a parent style.
   Better define a background that is used several times
   in the "backgrounds" section and reference it in
   the parent style.
*/

.mainScreen {
	margin: 10;
	font-color: black;
	font-size: medium;
	font-style: italic;
	background-color: gray;
}

.highscoreScreen extends mainScreen {
	font-color: white;
	background-color: black;
}