/*通栏开始ʼ*/
#tonglan{ width:100%; height:500px; margin:0 auto;  background-color:#FFFFFF;}
#tonglan1{ width:100%; height:319px;  background-color:#F5f5f5;}
.tonglan1 { width:1440px; height:319px; margin:0 auto; background-image:url(../images/company_05.jpg);}

/*通栏结束*/