body{
margin:0;
padding:0;
}
.slider li
{
    width: 100%;
    height: 630px;
    margin-bottom: 50px;
    overflow: hidden;
    top: 50px;
    opacity: 0;
    position: relative;
 
}
#p1{
height:630px;
background-image:url(../image/bg_pr1.jpg);
}
#p2{
height:630px;
background-image:url(../image/bg_pr2.jpg);
}
#p3{
height:630px;
background-image:url(../image/bg_pr3.jpg);
}
#p4{
height:630px;
background-image:url(../image/bg_pr4.jpg);
}
#p5{
height:630px;
background-image:url(../image/bg_pr5.jpg);
}
#p6{
height:630px;
background-image:url(../image/bg_pr6.jpg);
}
#p7{
height:630px;
background-image:url(../image/bg_pr7.jpg);
}
#p8{
height:630px;
background-image:url(../image/bg_pr8.jpg);
}