body {text-align:center; padding-top:15px;}
#doc2 {margin:auto;text-align:left; width:1000px; min-width:1000px;}

#hd{}
#bd { }
#menu {
	width:190px;
}
#b-unit { width:85%; }
#b-unit-about {
	width:50%;
}

#b-unit-know {
	width:45%;
}
#b-unit-res{
	width:46%;
}
#b-unit-con {
	width:34%;
}

#b-unit-tank {
	width:32%;
}

#ft {
	clear:both;
	font-size:x-small;
	color:#333333;
}

#small { width:160px;}
#medium { width:260px;}
#large {width:320px;}

/* quick tools*/
.clear { clear:both;}
.shorten { width:50%; }
.full { width:69%; }
.left {float:left;}
.right {float:right;}
.space { width:auto; height:10px; display: block; }