Save some vertical space on the banner

Author: Ivoz

warehouse/static/sass/layout/_banner-block.scss

@@ -1,13 +1,13 @@
 .banner-block {
   background-color: $brand-color;
   color: $white;
-  padding: 60px 0;
+  padding: 50px 0;
 
   @media only screen and (max-width: 800px) {
-     padding: 45px 0;
+     padding: 40px 0;
   }
 
   @media only screen and (max-width: 400px) {
-    padding: 30px 0;
+    padding: 25px 0;
   }
 }