html, 

body {
  	margin:0px;
	position: 
	background-color: #FFFFFF;
	background:url();
  	background-size: 1920px, 1800px;
	background-attachment:fixed;

} 
#myVideo {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100%;
  min-height: 100%;
}
#tab1
	 {
		position: relative;absolute;left:25%;top:0px;
		width:1200;height:1400px;
		background-color:;
		background:url(bilder/bg_2.png);
		border:0px solid #ffffff;
	}



#div1
	 {
		position: fixed;absolute;left:0px;top:0px;
		width:100%;height:60px;
		background-color:#BFD9FF;
		border:0px solid red;
	}
#div2
	 {
		position: fixed;absolute;left:200px;top:0px;
		background-color:;
		border:0px solid red;
	}


</style>