html, body {
  font-family:"微软雅黑";
  margin: 0;
  padding: 0;
  height: 100%;
  text-align: center;
  margin-top: 5px;
}


.top{
	margin: 0;
  padding: 0;
  width: 100%;
  height: 80px;
}

.leftimg{
	
	float: left;
	margin-top: 10px;
	margin-left:50px ;
}

.topregiht{
	float:right;
	margin-top: 10px;
	margin-right:50px ;
}

.button{
	height: 40px;
	width: 120px;
	background-color: aqua;
}
.center{
	height: 100%;;
	width: 100%;
	margin-top: 10px;
  padding: 0;
  
}

.bootm{
	float:left;
	height: 110px;
	width: 100%;
	margin-top: 40px;
  padding: 0;
	background: #000000;
}


/*特銳德**/

.trd_center{
	width: 100%;
  
}

.gd{
	width: 1200px;
	height: 600px;
	margin: 0 auto;
  align-content: center;
	
}