.activityNotice
{
    width:940px;
    height:359px; 
    margin-left:auto;
    margin-right:auto;  
   /* background-image: url(image/宣传--软件促销940已经开始0.jpg);*/
    background-image: url(image/宣传邮件02.jpg);
    display: none; 
}

.activityNotice a
{
      width:940px;
    height:359px; 
    float:left;
}