try to do the right thing to center the invite

index.html

@@ -22,9 +22,10 @@
     #einladung {
       font-family: 'silkscreennormal';
       position: absolute;
+      top: 5%;
       width: 70%;
-      height: 50%;
       padding: 5%;
+      margin: 5%;
       text-align: left;
       z-index: 100;
       background: rgba(0, 0, 0, 0.8);

platformer.js

@@ -1,14 +1,6 @@
 // heavily based on the Quintus platformer example.
 // vim:tw=120:
 
-// jQuery center() function. it centers things.
-jQuery.fn.center = function () {
-  this.css("position", "absolute");
-  this.css("top", Math.max(0, (($(window).height() - $(this).outerHeight()) / 2) + $(window).scrollTop()) + "px");
-  this.css("left", Math.max(0, (($(window).width() - $(this).outerWidth()) / 2) + $(window).scrollLeft()) + "px");
-  return this;
-}
-
 window.addEventListener("load",function() {
 
 // Set up an instance of the Quintus engine  and include
@@ -57,7 +49,6 @@ Q.Sprite.extend("Player",{
         rocket.animate({ x: 100, y: -500, angle: 360 });
 
         this.destroy();
-        $("#einladung").center();
         $("#einladung").show("slow");
       }
     });