.main{
	background-color: #fff;
}
.main_about_top{
    width: 100%;
    height: 30px;
    text-align: center;
    /*background: url(../images/about1.jpg) center no-repeat;*/
}
.main_about{
    width: 100%;
    height: auto;
    overflow: hidden;
    text-align: center;
}
.main_about img{
width: 1350px;
    height: auto;
}