/* Vertical centering: make div as large as viewport and use table layout */
div.container {
	  top: 0; 
	  left: 0; 
	  width: 100%; 
	  height: 100%;
	  position: fixed;
	  display: table
 }

p {
	display: table-cell;
	vertical-align: middle
}

/* Horizontal centering of image: set left & right margins to 'auto' */
img.displayed {
	display: block;
	margin: 1em auto
}

/* Also center the lines in the paragraph */
p {
	text-align: center
}