html, body, div,ul,video{	margin: 0;}

html{height:100%;}
body{ height:100%;}


#home{ background:url(images/p1756682152-2.jpg) 50% 0 no-repeat fixed;}
#bottom{ background:url(images/5168d8aa7f099.jpg) 50% 0 no-repeat fixed;}
<!--ÊÓ²îÔªËØ-->
.header-wrapper { width: 100%; height: auto;  }
.header-top { width: 100%; height: 100%; position:realitve; margin-bottom:-53px;  }

.header-two { margin-bottom: 75px; }
.header-two header{height: 900px; padding: 0px 0px 0px;}

.nav {background:url(images/navigation-pic.png); min-height:53px; text-align:center; margin-bottom:80px;width:100%;z-index:10000;}
.nav ul{ margin-left:25px;}