.container {
	position: relative;
	width: 100%;
	height: 0;
	padding-bottom: 56.25%;
}
.video {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}
#example {
	width: 100%;
	margin: 0 auto;
	font-size: 14px;
	line-height: 30px;
}
h1 {
	margin: 40px 0;
	font: 32px Microsoft Yahei;
	text-align: center;
}
h2 {
	height: 30px;
	margin: 20px 0 10px;
	padding: 0 5px;
	font: 16px/30px Microsoft Yahei;
	background-color: #f0f0f0;
}
h3 {
	font-size: 14px;
}
.nav {
	width: 100%;
	height: 36px;
	margin: 0;
	padding: 0;
	list-style-type: none;
	background-color: #0099CC;
}
.nav li {
	float: left;
	border-right: 1px solid #00a7df;
}
.nav a {
	float: left;
	height: 36px;
	padding: 0 30px;
	line-height: 36px;
	color: #fff;
	text-decoration: none;
}
.highlight {
	color: #f50;
}
pre {
	padding: 10px;
	border: 1px solid #ededed;
	line-height: 20px;
	font-size: 12px;
	background-color: #f9f9f9;
}
table {
	width: 100%;
	border-spacing: 0;
	border-collapse: collapse;
}
table th, table td {
	padding: 0 10px;
	border: 1px solid #ddd;
}
.list {
	list-style-type: square;
}
.list a {
	color: #2864BE;
}
.gotop {
	font-size: 12px;
	padding: 5px;
	line-height: 14px;
	color: #fff;
	background-color: #0099CC;
	text-decoration: none;
}
.vad {
	margin:30px 0 5px;
	font-family: arial, ËÎÌå, sans-serif;
	text-align:center;
}
.vad a {
	display:inline-block;
	height: 30px;
	line-height: 30px;
	margin:0 5px;
	padding:0 20px;
	font-size:14px;
	text-align:center;
	color:#eee;
	text-decoration:none;
	background-color:#222;
}
.vad a:hover {
	color:#fff;
	background-color:#000;
}
.qqrequireademo {
	MARGIN: 0px auto;
	WIDTH: 1150px;
	margin-top:30px;
}
<!--
.mbrequireademo1 {
	font-size:12px;
	float:left;
	margin-top:20px;
}
-->
.qqrequireademo2 {
	float:left;
	margin-top:15px;
	margin-bottom:30px;
	width:407px;
	height:2px;
	background:#e3e3e3;
	margin-right:40px;
}
.qqrequireademo4 {
	float:left;
	margin-top:15px;
	margin-bottom:30px;
	width:406px;
	height:2px;
	background:#e3e3e3;
	margin-left:40px;
}
.qqrequireademo3 {
	float:left;
	line-height:30px;
	font-size:30px;
	color:#7e7c7c;
}
.qqMain2Livedemo {
	float:left;
	WIDTH: 1095px;
	padding-top:20px;
}
.qqMain2Livedemo4 {
	float:left;
	WIDTH: 1045px;
	padding-left:95px;
}
.qqMain2Downloadpdtleft2 {
	float:left;
	padding-left:10px;
	width:820px;
}
.qqMain2Warrantyrma1sss {
	float:left;
	padding-top:0px;
	padding-bottom:40px;
	width:100%;
}
#qMain2pdtleft2lidivs {
	margin-left:10px;
	margin-top:20px;
	width:184px;
	height: 230px;
	border:1px solid #CCCCCC;
	display:inline-block;
}
/*.qqmbrequireademo1a {
	float:left;  WIDTH: 1150px; padding-left:0px; margin-top:50px;border:#dddddd 1px solid; margin-bottom:30px;
}*/
.qqmbrequireademo1a {
	float:left;
	WIDTH: 1150px;
	padding-left:0px;
	margin-top:50px;
	margin-bottom:50px;
	text-align:center;
	margin-left:auto;
	margin-right:auto;
}
.qqmbrequireademo1a_1 {
	WIDTH: 95%;
	float:left;
	border:1px solid #00FF00;
}
.qqpdtcalsslistpic {
	float:left;
	WIDTH: 184px;
	height:130px;
	text-align:center;
	padding-top:10px;
}
.qqpdtcalsslistpic img {
	width:163px;
	height:127px;
	border:0;
}
.qqpdtcalsslisttitle {
	float:left;
	WIDTH: 165px;
	color:#243a85;
	font-size:10px;
	line-height:15px;
	font-weight:bold;
	padding-left:15px;
	padding-top:5px;
	margin-bottom:10px;
	text-align:left;
}
.qqpdtcalsslisttitle A {
	color:#99cc33;
	text-decoration:none;
}
.qqpdtcalsslistpic11 {
	float:left;
	WIDTH: 165px;
	color:#999999;
	font-size:14px;
	line-height:16px;
	padding-left:15px;
}
.qqpdtcalsslistmemo A {
	color:#000000;
}
.Main3pdtshowl-inner-both h3 {
	LINE-HEIGHT: 30px;
	FONT-SIZE: 30px;
	FONT-WEIGHT: bold;
	padding-bottom:8px;
}
.Main3pdtshowl-inner-both h4 {
	LINE-HEIGHT: 30px;
	FONT-SIZE: 20px;
	FONT-WEIGHT: bold;
	padding-bottom:8px;
}
.Main3pdtshowl-inner-both p {
	font-size:15px;
}
.Main3pdtshowl-inner-both-img {
	text-align:center;
	margin-top:20px;
}
 @media screen and (max-width:830px) {
#example1 {
MARGIN: 0px auto;
WIDTH: 99%;
}
.nav {
width: 100%;
height: 36px;
margin: 0;
padding: 0;
list-style-type: none;
background-color:#FFFFFF
}
.nav li {
float: left;
border-right: 1px solid #000000;
}
.nav a {
float: left;
height: 36px;
padding: 0 20px;
line-height: 36px;
color:#000000;
text-decoration: none;
}
 .qqrequireademo {
 MARGIN: 0px auto;
WIDTH: 95%;
margin-top:30px;
}
<!--
.mbrequireademo1 {
font-size:12px;
float:left;
margin-top:20px;
}
-->
.qqrequireademo2 {
float:left;
margin-top:15px;
margin-bottom:10px;
width:10%;
height:2px;
background:#e3e3e3;
margin-right:5%;
}
.qqrequireademo4 {
float:left;
margin-top:15px;
margin-bottom:10px;
width:10%;
height:2px;
background:#e3e3e3;
margin-left:5%;
}
.qqrequireademo3 {
float:left;
line-height:30px;
font-size:30px;
color:#7e7c7c;
width:70%;
text-align:center
}
.qqMain2Livedemo {
 float:none;
WIDTH: 100%;
padding-top:5px;
MARGIN: 0px auto;
}
.qqmbcontactusmain21 {
width:100%;
}
.qqMain2Warrantyrma1sss {
float:none;
padding-top:0px;
padding-bottom:40px;
width:90%;
MARGIN: 0px auto;
}
.qqmbrequireademo1a {
 float:left;
WIDTH: 100%;
padding-left:0px;
margin-top:20px;
margin-bottom:0px;
}
#qMain2pdtleft2lidivs {
 margin-left:10px;
margin-top:20px;
width:262px;
height: 250px;
border:1px solid #CCCCCC;
display:inline-block;
margin-bottom:10px;
}
.qqpdtcalsslistpic {
 float:left;
WIDTH: 262px;
height:160px;
text-align:center;
padding-top:10px;
}
.qqpdtcalsslistpic img {
 width:163px;
height:127px;
border:0;
}
.qqpdtcalsslisttitle {
 float:left;
WIDTH: 247px;
color:#243a85;
font-size:15px;
line-height:22px;
font-weight:bold;
padding-left:15px;
padding-top:5px;
margin-bottom:10px;
}
.qqpdtcalsslisttitle A {
 color:#99cc33;
}
 .qqpdtcalsslistpic11 {
 float:left;
WIDTH: 247px;
color:#999999;
font-size:14px;
line-height:16px;
padding-left:15px;
}
.Main3pdtshowl-inner-both-img {
text-align:center;
}
.Main3pdtshowl-inner-both-img img {
margin:0 auto;
/*max-height: 127px; 
max-width: 163px;*/
/*max-height: 165px; 
max-width: 212px;*/
max-height: 100%;
max-width: 100%;
}
}