Make some style changes

css/core.css

 html, body, #wrapper{
-	height: 100%;
 	font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif
 }
+html, body{
+	height: 100%;
+}
+#wrapper{
+	height: 90%;
+}
 #input-div, #output-div{
 	height: 90%;
 	width: 48%;
@@ -17,14 +22,14 @@ html, body, #wrapper{
 	clear: both;
 }
 #input-textarea{
-	width: 90%;
-	height: 90%;
+	width: 95%;
+	height: 91.5%;
 	border: solid black 1px;
 	padding: 5px;
 	border-radius: 5px;
 }
 #output-pre{
-	height: 90%;
+	height: 95%;
 	width: 90%;
 	border: solid black 1px;
 	padding: 5px;