*{
                            margin: 0;
                            padding: 0;
                            list-style-type: none;
                        }
                        .index_banner{
                            width: 100%;
                            /*height: 560px;*/
                            /*background: black;*/
                            /*子绝父相*/
                            position: relative;
                            /*超出部分全部隐藏，解决横向滚动条*/
                            overflow: hidden;
							height:300px;
                        }
                        .index_banner ul{
                            position: absolute;
                        }
                        .index_banner ul li{
                            /*这个100%是相对于父盒子的（会把父盒子的宽度继承过来,如父盒子300%,这这里的100%就会相当于300%）*/
                            width: 100%;
                            height: 600px;
                            float: left;
                            background:  no-repeat center center;
                        }
                        /*.banner ul li:nth-child(1){*/
                            /*background: url('./1.jpg') no-repeat center center;*/
                        /*}*/
                        /*.banner ul li:nth-child(2){*/
                            /*background: url('./2.jpg') no-repeat center center;*/
                        /*}*/
                        /*.banner ul li:nth-child(3){*/
                            /*background: url('./3.jpg') no-repeat center center;*/
                        /*}*/
                        .index_banner ol{
                            /*width: 60px;*/
                            height: 20px;
                           /* background: rgba(0,0,0,0.5);  加透明底*/
                            position: absolute;
                            left:50%;
                            /*margin-left: -40px;*/
                            bottom: 3px;
                            padding: 0 10px;
                            border-radius: 10px;
                        }
                        .index_banner ol li{
                            width: 10px;
                            height: 10px;
                            float: left;
                            margin: 5px 5px;
                            background: rgba(255,255,255,0.5);
                            border-radius: 50%;
                            cursor: pointer;
                        }
                        .index_banner ol .current{
                            background: rgba(255,255,255,1);
                        }
                        .index_banner i{
                            width: 58px;
                            height: 120px;
                            position: absolute;
                            top: 50%;
                            margin-top: -60px;
                            cursor: pointer;
                            border-radius: 5px;
                            display: none;
                        }
                        .index_banner .left{
                            left: 60px;
                            background: url('../images/left_right.png') no-repeat 0 0px;
                        }
                        .index_banner .right{
                            right: 60px;
                            background: url('../images/left_right.png') no-repeat 0px -120px;
                        }
                        .index_banner .left:hover , .index_banner .right:hover{
                            /*background-color: rgba(0, 0, 0, 0.31);*/
                        }