.main{ width:1000px; height:auto; overflow:hidden;margin: auto;}
.banner{ width:100%; height:auto; overflow:hidden;}
.main_content{ width:100%; margin:auto; height:auto; overflow:hidden;}
.main_content .main_left{ width:242px; height:auto; float:left;overflow:hidden;background:#f6f6f6; padding:18px;}
.main_content .main_right{ width:700px; height:auto; float:right;overflow:hidden; margin-top:20px;}
.main_content .main_right .contentpane{ width:100%; height:auto;overflow:hidden;}
.main_content .main_right .main_right_content{ width:100%; height:auto;overflow:hidden; margin-top:20px;}
.main_content .main_right .main_right_content .main_right_box{ width:224px; height:auto; float:left;overflow:hidden;}