/*页首滚动栏*/
.marquee_1{
font-size:30px;/*页首HTML字体大小设置为30px。*/
background-color:rgba(166,166,166,0.4);/*页首HTML背景色。*/
}

/*侧边栏公告*/
.marquee_2{
font-size:1.4em;/*侧边栏公告文字大小设置为默认字体大小的1.4倍。*/
background-color:rgba(100,0,100,0.4);
}

/*页脚滚动栏*/
.marquee_3{
font-size:30px;
background-color:rgba(166,166,166,0.4);
}