table, th, td {
  border: 1px solid black;
}

.red {
	
color:red;
 
}

h1 {
color:red;
}

a:hover { 
color:#888; 
text-decoration:none;
}

#header {
background:#999;
width:80%;
height:100px;
margin:20px auto;	
}

#content {
width:80%;
margin:20px auto;
border:1px solid #000;	
}

#footer {
width:80%;
margin:20px auto;
border:1px solid #000;	
}

.main{
width:1000px;
height:auto;
margin:0 auto;
overflow:hidden;	
}

.box{
width:300px;
height:200px;
border:1px solid #000;
background:#ccc;
float:left;	
}

.clr{
clear:both;
}