change to fixed 16:9 ratio

templates/_index.html

@@ -69,17 +69,14 @@
 
                 // The "normal" size of the presentation, aspect ratio will be preserved
                 // when the presentation is scaled to fit different resolutions
-                width: '100%',
-                height: '100%',
+                width: 1920,
+                height: 1080,
 
                 slideNumber: 'c/t',
 
-                // Factor of the display size that should remain empty around the content
-                margin: 0.05,
-
                 // Bounds for smallest/largest possible scale to apply to content
-                minScale: 0.2,
-                maxScale: 1.5,
+                minScale: 0.1,
+                maxScale: 2.5,
 
                 theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
                 transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/zoom/linear/fade/none