body {
	background-color: #444444;
}
.centerdiv{ /*IE method of centering a relative div*/
text-align: center;
}

.centerdiv>div{ /*Proper way to center a relative div*/
margin: 0 auto;
}

#global {
     position: absolute;
     left: 50%; 
     top: 50%;
     width: 300px;
     height: 514px;
     margin-top: -257px; /* half of the height */
     margin-left: -150px; /* half of the width */
     border: 0;
     }