background:no-repeat scroll 56px 78px / 69px 69px rgba(0, 0, 0, 0);
background:no-repeat scroll 56px 78px(background-position)/(分割线) *69px 69px *(background-size ) rgba(0, 0, 0, 0);
background:no-repeat scroll 56px 78px / 69px 69px rgba(0, 0, 0, 0);
background:no-repeat scroll 56px 78px(background-position)/(分割线) *69px 69px *(background-size ) rgba(0, 0, 0, 0);