*{
	margin:0;
	padding:0;
	}
html, body{
	height:100%;
	}
body{
	font-family: Arial, Verdana, Helvetica, sans-serif;
	background: #000;
	}
#center{
	position:relative;
	width:1px;
	height:50%;
	float:left;
	margin-bottom:-510px;
	}
#container{
	position:relative;
	width:1000px;
	margin:auto;
	clear:both;
	padding: 0px 0px 5px 0px;
	background: url(img/sdk_main_bg.jpg) center 200px no-repeat #000;
	height: 1020px;
	color:#FFFFFF;
	font-size:12px;
	}
#container object{
  padding-left: 50px;
}

#left_a{
  position: relative;
  width: 345px;
  padding: 135px 100px 0px 56px;
  float:left;
  text-align: center;
}
#left_a h1, #right_a h1{
  text-align: center;
  font-size: 16px;
}
#left_a_1{
  position: relative;
  display: block;
  width: 99px;
  float:left;
  text-decoration: none;
  color: #fff;
  margin-left: 62px;
  padding-top: 84px;
  background: url(img/sdk_a_en.jpg) left top no-repeat;
}
#left_a_2{
  position: relative;
  display: block;
  width: 99px;
  float:left;
  text-decoration: none;
  color: #fff;
  margin-left: 20px;
  padding-top: 84px;
  background: url(img/sdk_a_cz.jpg) left top no-repeat;
}
#right_a{
  position: relative;
  width: 345px;
  padding: 135px 0px 0px 110px;
  float:left;
  text-align: center;
}
#right_a_1{
  position: relative;
  display: block;
  width: 99px;
  float:left;
  text-decoration: none;
  color: #fff;
  margin-left: 62px;
  padding-top: 84px;
  background: url(img/sdk_a_en.jpg) left top no-repeat;
}
#right_a_2{
  position: relative;
  display: block;
  width: 99px;
  float:left;
  text-decoration: none;
  color: #fff;
  margin-left: 20px;
  padding-top: 84px;
  background: url(img/sdk_a_cz.jpg) left top no-repeat;
}

#left_a_1:hover, #right_a_1:hover{
  background: url(img/sdk_a_en_hover.jpg) left top no-repeat;
}
#left_a_2:hover, #right_a_2:hover{
  background: url(img/sdk_a_cz_hover.jpg) left top no-repeat;
}