Adjust vertical centering

breve.cabal

@@ -1,10 +1,10 @@
 name:                breve
-version:             0.0.2.1
+version:             0.0.2.2
 synopsis:            a url shortener
 description:
 
   Breve is a web application that provides a simple interface to
-  shortening long urls creating links smaller and easier to remember.  
+  shortening long urls creating links smaller and easier to remember.
 
 homepage:            https://github.com/rnhmjoj/breve
 license:             MIT

layouts/main.css

@@ -20,7 +20,8 @@ body {
 #container:before {
     content: '';
     display: inline-block;
-    height: 100%; 
+    height: 75%;
+    min-height: 20em;
     vertical-align: middle;
 }