"<marquee id='affiche' align='left' behavior='scroll' bgcolor='#ffffff' direction='left' height='250' width='400' 

hspace='0' vspace='2' loop='-1' scrollamount='" + (rand() * (11 - 1) + 1) + "' scrolldelay='100' onMouseOut='this.start()' 

onMouseOver='this.stop()'>" + REPLACE(E2, ",", "<br />") + "</marquee>"

请问，在单元格内容水平滚动中，背景能否设置成透明