diff --git a/main.css b/main.css
index fb28433..eced626 100644
--- a/main.css
+++ b/main.css
@@ -19,7 +19,6 @@ body {
 	color: white;
 	font-size: 16px;
 	font-weight: 600;
-	vertical-align: middle;
 	padding-top: 0.4em;
 	padding-bottom: 0.4em;
 }
@@ -39,6 +38,7 @@ body {
 	box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
 }
 
+/* always leave at least an empty space in a group */
 .list-group {
 	min-height: 31px;
 }
@@ -51,13 +51,6 @@ body {
 	background: transparent !important;
 }
 
-pre {
-	tab-size: 4;
-	-moz-tab-size: 4;
-	background-color: rgb(245, 245, 245);
-	padding: 10px;
-}
-
 /* Move the navbar contents onto the same line as the toggler */
 #navbarCollapse {
 	margin-top: -2.5rem !important;
@@ -72,15 +65,12 @@ pre {
 	background: rgba(255, 255, 255, 0.24);
 }
 
-#exportText, #importText {
-	font-family: monospace;
-}
-
 .clickable {
 	cursor: pointer;
 }
 
 textarea {
+	font-family: monospace;
 	white-space: pre;
 }