#img1{
background:url("/jtwcsglxhcom/index/image/index_li1.png") no-repeat center center;
}
#img2{
background:url("/jtwcsglxhcom/index/image/index_li2.png") no-repeat center center;
}
#img3{
background:url("/jtwcsglxhcom/index/image/index_li3.png") no-repeat center center;
}
#img4{
background:url("/jtwcsglxhcom/index/image/index_li4.png") no-repeat center center;
}
#img5{
background:url("/jtwcsglxhcom/index/image/index_li5.png") no-repeat center center;
}
#roundabout li {
    background-color: none;
   
  /*  height: 8em;
    width: 8em;*/
}