body
 {
		position: absolute;
		margin: 0;
		padding: 0;
		text-align: center;
		font: 85% arial, helvetica, sans-serif;
	}
 p 
  {
		font: 100% arial, helvetica, sans-serif;
		color: #387A9B;
		width: 630px;
    padding: 1em 2em 3em 4em;
    }

  
	#header
	{
	  text-align: left;
		margin: 0 auto;
		padding: 0;
		width: 630px;
		background: #FFFFFF;
	}
	
	h1
	{
	
		margin: 0;
		padding: 0;
		
	}
	
	h1 img
	{
		display: block;
		border: 0;
		padding: 0;
		margin: 0;
	}

	ul#topnav
	{
		margin-left: 0;
		margin-top: 0;
		margin-bottom: 0;		
		padding-left: 0;
		padding-bottom: 0;		
		list-style-type: none;
		background: #387A9B;
		float: left;
		width: 100%
	}
	
	ul#topnav li
	{
		display: inline;
	}
	
	ul#topnav li a
	{
		display: block;
		float: left;
		padding: .2em .6em;
		text-decoration: none;
		color: #FFFFFF;
		background: #387A9B;
		border-right: 2px solid #FFFFFF;
 
	}
	
	ul#topnav li a:hover, ul#topnav li a:active
	{
		text-decoration: none;
		color: #387A9B;
		background: #FFFFFF;
	}
 div#wrap
	{
		margin: 0;
		padding: 0;
	}	
 div#detail
	 {
	  margin: 0;
		padding: 0 auto;
		width: 630px;
	  background: #FFFFFF url(images/lesson17g.jpg) no-repeat;
	 }
 div#detail p 
   {
     margin: 0;     
     text-align: center;
     padding: 0 50px 0 10px;
     width: 610px;

   }
 div#detail h2
   {
     margin: 0;
     padding: 20px 20px 0 20px;
     color: #387A9B;
     background: url(images/lesson17h.jpg) no-repeat 100% 0;
   }
 div#detail h3
   {
     margin: 0;
     padding: 20px 20px 0 20px;
     color: #387A9B;
     } 
div#table
	 {
	   background: #FFFFFF url(images/lesson17g.jpg) no-repeat;
	   width: 630px;

	 }
 div#table p 
   {
     text-align: left;
     padding: 0 0 0 0;
     width: 630px;

   }
 div#table h2
   {
     margin: 0;
     padding: 20px 20px 0 20px;
     color: #387A9B;
     background: url(images/lesson17h.jpg) no-repeat 100% 0;
 
   } 
 ul#links
   {
      width: 630px;
      margin-left: 0;
      padding-left: 0;
      list-style-type: none;
    }
 ul#links a
   {
     display: block;
     text-decoration: none;
     background: #387A9B;
     color: #FFFFFF;
     padding: .2em .5em;
     border-bottom: 1px solid #FFFFFF;
   }
 ul#links a:hover
   {
     background: #FFFFFF;
     color: #387A9B;
   }
 ul#links li
   {
     display: inline;
   }