Fix empty space before footer in start.html.

Change-Id: Ia69e8500709f6c0e1dea5038682c08e933a9a9e6
diff --git a/styles.css b/styles.css
index b8c2ec1..abd152f 100644
--- a/styles.css
+++ b/styles.css
@@ -600,7 +600,7 @@
 #footer-start {
 	/*margin: 165em auto 0;*/
 	/*margin: 300em auto 0;*/
-	margin: 256em auto 0;
+	margin: 170em auto 0;
 	background-image:linear-gradient(to left, #FFCC00, white 90%);
 	border-top: 8px solid #FFCC00;
 }