/*give the body height:100% so that its child    elements can have percentage heights*/  
body{ 
height:100%; 
font-family: "Trebuchet MS", "Bitstream Vera Sans", verdana, lucida, arial, helvetica, sans-serif;
font-size: 80%; 
}  

p {
text-align:center;
margin: 0;
}

/*this is what we want the div to look like*/  
div.fullscreen{
display:block;    /*set the div in the top-left corner of the screen*/    
position:absolute;    
top:0;
left:0;        /*set the width and height to 100% of the screen*/    
width:100%;    
height:100%;  
}