- width:400px;
- height:300px;
- margin-top: -150px; /*set to a negative number 1/2 of your height*/
- margin-left: -200px; /*set to a negative number 1/2 of your width*/
+ width:450px;
+ height:i500px;
+ margin-top: -250px; /*set to a negative number 1/2 of your height*/
+ margin-left: -225px; /*set to a negative number 1/2 of your width*/