.continer h1{
	text-align: center;
	font-weight: 800;
}
.introduce1,.introduce2,.introduce3,.introduce4{
	position: relative;
	margin: 10px 150px;
	width: 80%;
}
.introduce1 span{
	text-align:center;
	width: 900px;
	font-size: 22px;
	text-indent: 2em;	
}
div,ul,li,img {
        padding: 0;
        margin: 0;
}
    
.scroll_div {
    width: 1100px;
    height: 290px;
    margin: 0 auto;
    padding: 10px;
}
    
.scroll_div .pic {
    width: 800px;
    height: 290px;
    overflow: hidden;
    position: relative;
    float: left;
}
    
.scroll_div .pic li {
    position: absolute;
    top: 0;
    left: 0;
    display: none;
}
    /*    .scroll_div .pic li img{
    	vertical-align:bottom;
    }*/
    
.scroll_div .btn {
    float: left;
    width: 173px;
    margin-left: 0px;
    height: 290px;
}
    
.scroll_div .btn li {
    width: 173px;
    height: 66px;
    display: block;
    float: left;
    text-align: center;
    color: #fff;
    font: bold 18px/66px "微软雅黑";
    background: #008dd8;
    margin: 0px 0;
    cursor: pointer;
}
    
.scroll_div .btn li.on {
    background: #d73737;
}
    
li {
    list-style: none;
}
.scroll_div li img{
	width: 30%;
	display: inline-block;
}