added a min-height to #page re: bg gradient issue (bug 698372)

media/css/impala/lib.less

@@ -20,6 +20,11 @@
 @serif-stack: Georgia, serif;
 @mono-stack: "andale mono", monospace;
 
+
+// Fixed Sizes
+@page-min-height: 404px; // height of the current gradient background image on #page
+
+
 // Mixins
 .border-radius(@radius) {
     -webkit-border-radius: @radius;

media/css/impala/site.less

@@ -18,6 +18,7 @@ body {
     width: 960px;
     margin: 0 auto;
     position: relative;
+    min-height: @page-min-height;
     .bump {
         min-height: 123px;
     }