/* .cooperative_partner{background: url(../images/dabj1.jpg)no-repeat 0 0;background-attachment: fixed;}*/
 .hezuomain a{width: 197px;height: 132px;float: left;position: relative;margin-left: 1px;margin-top: 1px;background: #fff;}
        .hezuomain a img{position: absolute;top: 0;left: 0;width: 100%;height: 100%;}
.img2{display: none;opacity: 1;}
  @keyframes doudong1{
            0%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
            50%{

                -webkit-transform:rotateY(90deg);
                -ms-transform:rotateY(90deg);
                -o-transform:rotateY(90deg);
                transform:rotateY(90deg);
            }
            100%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
        }
        @-webkit-keyframes doudong1{
            0%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
            50%{

                -webkit-transform:rotateY(90deg);
                -ms-transform:rotateY(90deg);
                -o-transform:rotateY(90deg);
                transform:rotateY(90deg);
            }
            100%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
        }
        @-moz-keyframes doudong1{
            0%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
            50%{

                -webkit-transform:rotateY(90deg);
                -ms-transform:rotateY(90deg);
                -o-transform:rotateY(90deg);
                transform:rotateY(90deg);
            }
            100%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
        }
@-o-keyframes doudong1{
            /*兼容欧朋浏览器*/
            0%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
            50%{

                -webkit-transform:rotateY(90deg);
                -ms-transform:rotateY(90deg);
                -o-transform:rotateY(90deg);
                transform:rotateY(90deg);
            }
            100%{
                -webkit-transform:rotateY(0deg);
                -ms-transform:rotateY(0deg);
                -o-transform:rotateY(0deg);
                transform:rotateY(0deg);
            }
        }
	.hezuomain a:hover img{
            -webkit-animation:doudong1 1s ease-in-out;
            -o-animation:doudong1 1s ease-in-out;
            animation:doudong1 1s ease-in-out;
            /*一个动画的简写属性*/
        }