diff --git a/assets/css/theme/ambiance.css b/assets/css/theme/ambiance.css
index bce3446..503f7f2 100644
--- a/assets/css/theme/ambiance.css
+++ b/assets/css/theme/ambiance.css
@@ -39,7 +39,6 @@
 /* Editor styling */
 
 .cm-s-ambiance.CodeMirror {
-  line-height: 1.40em;
   color: #E6E1DC;
   background-color: #202020;
   -webkit-box-shadow: inset 0 0 10px black;
diff --git a/assets/css/theme/lesser-dark.css b/assets/css/theme/lesser-dark.css
index 690c183..9d9391e 100644
--- a/assets/css/theme/lesser-dark.css
+++ b/assets/css/theme/lesser-dark.css
@@ -2,9 +2,6 @@
 http://lesscss.org/ dark theme
 Ported to CodeMirror by Peter Kroon
 */
-.cm-s-lesser-dark {
-  line-height: 1.3em;
-}
 .cm-s-lesser-dark.CodeMirror { background: #262626; color: #EBEFE7; text-shadow: 0 -1px 1px #262626; }
 .cm-s-lesser-dark div.CodeMirror-selected { background: #45443B; } /* 33322B*/
 .cm-s-lesser-dark .CodeMirror-line::selection, .cm-s-lesser-dark .CodeMirror-line > span::selection, .cm-s-lesser-dark .CodeMirror-line > span > span::selection { background: rgba(69, 68, 59, .99); }
diff --git a/assets/css/theme/mdn-like.css b/assets/css/theme/mdn-like.css
index f325d45..d307eaf 100644
--- a/assets/css/theme/mdn-like.css
+++ b/assets/css/theme/mdn-like.css
@@ -12,7 +12,7 @@
 .cm-s-mdn-like .CodeMirror-line::selection, .cm-s-mdn-like .CodeMirror-line > span::selection, .cm-s-mdn-like .CodeMirror-line > span > span::selection { background: #cfc; }
 .cm-s-mdn-like .CodeMirror-line::-moz-selection, .cm-s-mdn-like .CodeMirror-line > span::-moz-selection, .cm-s-mdn-like .CodeMirror-line > span > span::-moz-selection { background: #cfc; }
 
-.cm-s-mdn-like .CodeMirror-gutters { background: #f8f8f8; border-left: 6px solid rgba(0,83,159,0.65); color: #333; }
+.cm-s-mdn-like .CodeMirror-gutters { background: #f8f8f8; color: #333; }
 .cm-s-mdn-like .CodeMirror-linenumber { color: #aaa; padding-left: 8px; }
 .cm-s-mdn-like .CodeMirror-cursor { border-left: 2px solid #222; }
 
diff --git a/assets/css/theme/midnight.css b/assets/css/theme/midnight.css
index e41f105..17ed39c 100644
--- a/assets/css/theme/midnight.css
+++ b/assets/css/theme/midnight.css
@@ -12,8 +12,6 @@
     color: #D1EDFF;
 }
 
-.cm-s-midnight.CodeMirror { border-top: 1px solid black; border-bottom: 1px solid black; }
-
 .cm-s-midnight div.CodeMirror-selected { background: #314D67; }
 .cm-s-midnight .CodeMirror-line::selection, .cm-s-midnight .CodeMirror-line > span::selection, .cm-s-midnight .CodeMirror-line > span > span::selection { background: rgba(49, 77, 103, .99); }
 .cm-s-midnight .CodeMirror-line::-moz-selection, .cm-s-midnight .CodeMirror-line > span::-moz-selection, .cm-s-midnight .CodeMirror-line > span > span::-moz-selection { background: rgba(49, 77, 103, .99); }
diff --git a/assets/css/theme/neo.css b/assets/css/theme/neo.css
index b28d5c6..0a40583 100644
--- a/assets/css/theme/neo.css
+++ b/assets/css/theme/neo.css
@@ -5,7 +5,6 @@
 .cm-s-neo.CodeMirror {
   background-color:#ffffff;
   color:#2e383c;
-  line-height:1.4375;
 }
 .cm-s-neo .cm-comment { color:#75787b; }
 .cm-s-neo .cm-keyword, .cm-s-neo .cm-property { color:#1d75b3; }
diff --git a/assets/css/theme/panda-syntax.css b/assets/css/theme/panda-syntax.css
index c93b2ea..79418c5 100644
--- a/assets/css/theme/panda-syntax.css
+++ b/assets/css/theme/panda-syntax.css
@@ -6,7 +6,6 @@
 .cm-s-panda-syntax {
 	background: #292A2B;
 	color: #E6E6E6;
-	line-height: 1.5;
 	font-family: 'Operator Mono', 'Source Sans Pro', Menlo, Monaco, Consolas, Courier New, monospace;
 }
 .cm-s-panda-syntax .CodeMirror-cursor { border-color: #ff2c6d; }
diff --git a/assets/css/theme/pastel-on-dark.css b/assets/css/theme/pastel-on-dark.css
index 2603d36..0b973d8 100644
--- a/assets/css/theme/pastel-on-dark.css
+++ b/assets/css/theme/pastel-on-dark.css
@@ -10,7 +10,6 @@
 .cm-s-pastel-on-dark.CodeMirror {
 	background: #2c2827;
 	color: #8F938F;
-	line-height: 1.5;
 }
 .cm-s-pastel-on-dark div.CodeMirror-selected { background: rgba(221,240,255,0.2); }
 .cm-s-pastel-on-dark .CodeMirror-line::selection, .cm-s-pastel-on-dark .CodeMirror-line > span::selection, .cm-s-pastel-on-dark .CodeMirror-line > span > span::selection { background: rgba(221,240,255,0.2); }
diff --git a/assets/css/theme/solarized.css b/assets/css/theme/solarized.css
index 1f39c7e..a9cf776 100644
--- a/assets/css/theme/solarized.css
+++ b/assets/css/theme/solarized.css
@@ -28,7 +28,6 @@ http://ethanschoonover.com/solarized/img/solarized-palette.png
 /* Color scheme for code-mirror */
 
 .cm-s-solarized {
-  line-height: 1.45em;
   color-profile: sRGB;
   rendering-intent: auto;
 }