Merge branch 'css-zero-unit-fix' into 'master'

Follow the CSS Style Guide rules for unitless zero values.

Discussed in #14299.

cc: @rspeicher @jschatz1 

See merge request !3259

26 files changed, 140 insertions, 139 deletions

diff --git a/app/assets/stylesheets/framework/blocks.scss b/app/assets/stylesheets/framework/blocks.scss
index d20b77ffae9..90c3ce0e84c 100644
--- a/app/assets/stylesheets/framework/blocks.scss
+++ b/app/assets/stylesheets/framework/blocks.scss
@@ -23,7 +23,7 @@
   margin-bottom: -$gl-padding;
   background-color: $background-color;
   padding: $gl-padding;
-  margin-bottom: 0px;
+  margin-bottom: 0;
   border-top: 1px solid $border-color;
   border-bottom: 1px solid $border-color;
   color: $gl-gray;
diff --git a/app/assets/stylesheets/framework/buttons.scss b/app/assets/stylesheets/framework/buttons.scss
index 10fe42239b1..fa115a4bf56 100644
--- a/app/assets/stylesheets/framework/buttons.scss
+++ b/app/assets/stylesheets/framework/buttons.scss
@@ -127,7 +127,7 @@
     margin-right: 7px;
     float: left;
     &:last-child {
-      margin-right: 0px;
+      margin-right: 0;
     }
     &.btn-xs {
       margin-right: 3px;
@@ -169,7 +169,7 @@
     margin-right: 7px;
     float: left;
     &:last-child {
-      margin-right: 0px;
+      margin-right: 0;
     }
   }
 }
diff --git a/app/assets/stylesheets/framework/files.scss b/app/assets/stylesheets/framework/files.scss
index 116cc0df81c..646e2610831 100644
--- a/app/assets/stylesheets/framework/files.scss
+++ b/app/assets/stylesheets/framework/files.scss
@@ -30,7 +30,7 @@
       right: 15px;
 
       .btn {
-        padding: 0px 10px;
+        padding: 0 10px;
         font-size: 13px;
         line-height: 28px;
       }
diff --git a/app/assets/stylesheets/framework/header.scss b/app/assets/stylesheets/framework/header.scss
index 5f70cd399f6..71a7ecab8ef 100644
--- a/app/assets/stylesheets/framework/header.scss
+++ b/app/assets/stylesheets/framework/header.scss
@@ -162,7 +162,7 @@ header {
     font-size: 18px;
 
     .navbar-nav {
-      margin: 0px;
+      margin: 0;
       float: none !important;
 
       .visible-xs, .visable-sm {
diff --git a/app/assets/stylesheets/framework/highlight.scss b/app/assets/stylesheets/framework/highlight.scss
index 12e2f00fe89..7cf4d4fba42 100644
--- a/app/assets/stylesheets/framework/highlight.scss
+++ b/app/assets/stylesheets/framework/highlight.scss
@@ -1,8 +1,8 @@
 .file-content.code {
   border: none;
   box-shadow: none;
-  margin: 0px;
-  padding: 0px;
+  margin: 0;
+  padding: 0;
   table-layout: fixed;
 
   pre {
diff --git a/app/assets/stylesheets/framework/mixins.scss b/app/assets/stylesheets/framework/mixins.scss
index 4b59c758f13..377bfa174bd 100644
--- a/app/assets/stylesheets/framework/mixins.scss
+++ b/app/assets/stylesheets/framework/mixins.scss
@@ -67,8 +67,8 @@
  * Base mixin for lists in GitLab
  */
 @mixin basic-list {
-  margin: 5px 0px;
-  padding: 0px;
+  margin: 5px 0;
+  padding: 0;
   list-style: none;
 
   > li {
@@ -77,7 +77,7 @@
     padding: 10px 0;
     border-bottom: 1px solid #eee;
     display: block;
-    margin: 0px;
+    margin: 0;
 
     &:last-child {
       border-bottom: none;
diff --git a/app/assets/stylesheets/framework/mobile.scss b/app/assets/stylesheets/framework/mobile.scss
index ec10a70cf0f..5ea4f9a49db 100644
--- a/app/assets/stylesheets/framework/mobile.scss
+++ b/app/assets/stylesheets/framework/mobile.scss
@@ -128,7 +128,7 @@
 .show-aside {
   display: none;
   position: fixed;
-  right: 0px;
+  right: 0;
   top: 30%;
   padding: 5px 15px;
   background: #eee;
diff --git a/app/assets/stylesheets/framework/nav.scss b/app/assets/stylesheets/framework/nav.scss
index b53872bf675..5f4ce87b085 100644
--- a/app/assets/stylesheets/framework/nav.scss
+++ b/app/assets/stylesheets/framework/nav.scss
@@ -59,7 +59,7 @@
   .nav-links {
     display: inline-block;
     width: 50%;
-    margin-bottom: 0px;
+    margin-bottom: 0;
     border-bottom: none;
 
     /* Small devices (phones, tablets, 768px and lower) */
@@ -74,7 +74,7 @@
     float: right;
     text-align: right;
     padding: 11px 0;
-    margin-bottom: 0px;
+    margin-bottom: 0;
 
     > .dropdown {
       margin-right: $gl-padding-top;
diff --git a/app/assets/stylesheets/framework/selects.scss b/app/assets/stylesheets/framework/selects.scss
index cbcfef8a693..b3371229d5a 100644
--- a/app/assets/stylesheets/framework/selects.scss
+++ b/app/assets/stylesheets/framework/selects.scss
@@ -151,7 +151,7 @@
   padding: 2px 25px 2px 5px;
   background: #fff image-url('select2.png');
   background-repeat: no-repeat;
-  background-position: right 0px bottom 6px;
+  background-position: right 0 bottom 6px;
   border: 1px solid $input-border;
   @include border-radius($border-radius-default);
   @include transition(border-color ease-in-out .15s, box-shadow ease-in-out .15s);
diff --git a/app/assets/stylesheets/framework/sidebar.scss b/app/assets/stylesheets/framework/sidebar.scss
index 29570f2ce3a..be05db58c40 100644
--- a/app/assets/stylesheets/framework/sidebar.scss
+++ b/app/assets/stylesheets/framework/sidebar.scss
@@ -16,7 +16,7 @@
   .gitlab-text-container-link {
     z-index: 1;
     position: absolute;
-    left: 0px;
+    left: 0;
   }
 
   #logo {
@@ -143,7 +143,7 @@
   overflow: hidden;
 
   &.navbar-collapse {
-    padding: 0px !important;
+    padding: 0 !important;
   }
 
   li {
@@ -182,7 +182,7 @@
       .count {
         float: right;
         background: #eee;
-        padding: 0px 8px;
+        padding: 0 8px;
         @include border-radius(6px);
       }
 
@@ -194,8 +194,8 @@
 }
 
 .sidebar-subnav {
-  margin-left: 0px;
-  padding-left: 0px;
+  margin-left: 0;
+  padding-left: 0;
 
   li {
     list-style: none;
diff --git a/app/assets/stylesheets/framework/tw_bootstrap.scss b/app/assets/stylesheets/framework/tw_bootstrap.scss
index 9946dd3e9ba..dd42db1840f 100644
--- a/app/assets/stylesheets/framework/tw_bootstrap.scss
+++ b/app/assets/stylesheets/framework/tw_bootstrap.scss
@@ -138,7 +138,7 @@
     }
 
     .btn-clipboard {
-      min-width: 0px;
+      min-width: 0;
     }
   }
 
diff --git a/app/assets/stylesheets/framework/typography.scss b/app/assets/stylesheets/framework/typography.scss
index 6ff8852c2f6..949295a1d0c 100644
--- a/app/assets/stylesheets/framework/typography.scss
+++ b/app/assets/stylesheets/framework/typography.scss
@@ -33,7 +33,7 @@
     border-color: #ccc #ccc #bbb;
     border-image: none;
     border-radius: 3px;
-    box-shadow: 0px -1px 0px #bbb inset;
+    box-shadow: 0 -1px 0 #bbb inset;
   }
 
   h1 {
@@ -187,7 +187,7 @@ body {
 }
 
 .page-title-empty {
-  margin-top: 0px;
+  margin-top: 0;
   line-height: 1.3;
   font-size: 1.25em;
   font-weight: 600;
diff --git a/app/assets/stylesheets/framework/zen.scss b/app/assets/stylesheets/framework/zen.scss
index c3f27333fad..02e24ec7c4d 100644
--- a/app/assets/stylesheets/framework/zen.scss
+++ b/app/assets/stylesheets/framework/zen.scss
@@ -2,7 +2,7 @@
   a.js-zen-enter {
     color: $gl-gray;
     position: absolute;
-    top: 0px;
+    top: 0;
     right: 4px;
     line-height: 56px;
   }
diff --git a/app/assets/stylesheets/pages/commit.scss b/app/assets/stylesheets/pages/commit.scss
index c0cc30d33a6..971656feb42 100644
--- a/app/assets/stylesheets/pages/commit.scss
+++ b/app/assets/stylesheets/pages/commit.scss
@@ -55,7 +55,7 @@
     padding: 10px 0;
 
     li {
-      padding: 3px 0px;
+      padding: 3px 0;
       line-height: 20px;
     }
   }
diff --git a/app/assets/stylesheets/pages/commits.scss b/app/assets/stylesheets/pages/commits.scss
index 2062cd2ebcf..d57be1b2daa 100644
--- a/app/assets/stylesheets/pages/commits.scss
+++ b/app/assets/stylesheets/pages/commits.scss
@@ -152,7 +152,7 @@ li.commit {
 
     .count {
       padding-top: 6px;
-      padding-bottom: 0px;
+      padding-bottom: 0;
       font-size: 12px;
       color: #333;
       display: block;
diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index 4739aa0502d..db06b8288c2 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -57,8 +57,8 @@
       font-family: $monospace_font;
       border: none;
       border-collapse: separate;
-      margin: 0px;
-      padding: 0px;
+      margin: 0;
+      padding: 0;
       .line_holder td {
         line-height: $code_line_height;
         font-size: $code_font_size;
@@ -76,10 +76,10 @@
     }
 
     .old_line, .new_line {
-      margin: 0px;
-      padding: 0px;
+      margin: 0;
+      padding: 0;
       border: none;
-      padding: 0px 5px;
+      padding: 0 5px;
       border-right: 1px solid;
       text-align: right;
       min-width: 35px;
@@ -97,8 +97,8 @@
     }
     .line_content {
       display: block;
-      margin: 0px;
-      padding: 0px 0.5em;
+      margin: 0;
+      padding: 0 0.5em;
       border: none;
       &.parallel {
         display: table-cell;
@@ -183,7 +183,7 @@
           height: 14px;
           width: 15px;
           position: absolute;
-          top: 0px;
+          top: 0;
           background: image-url('swipemode_sprites.gif') 0 3px no-repeat;
         }
         .bottom-handle {
@@ -191,7 +191,7 @@
           height: 14px;
           width: 15px;
           position: absolute;
-          bottom: 0px;
+          bottom: 0;
           background: image-url('swipemode_sprites.gif') 0 -11px no-repeat;
         }
       }
@@ -206,8 +206,8 @@
       .frame.added, .frame.deleted {
         position: absolute;
         display: block;
-        top: 0px;
-        left: 0px;
+        top: 0;
+        left: 0;
       }
       .controls {
         display: block;
@@ -215,7 +215,7 @@
         width: 300px;
         z-index: 100;
         position: absolute;
-        bottom: 0px;
+        bottom: 0;
         left: 50%;
         margin-left: -150px;
 
@@ -231,11 +231,11 @@
         .dragger {
           display: block;
           position: absolute;
-          left: 0px;
-          top: 0px;
+          left: 0;
+          top: 0;
           height: 14px;
           width: 14px;
-          background: image-url('onion_skin_sprites.gif') 0px -34px repeat-x;
+          background: image-url('onion_skin_sprites.gif') 0 -34px repeat-x;
           cursor: pointer;
         }
 
@@ -243,17 +243,17 @@
           display: block;
           position: absolute;
           top: 2px;
-          right: 0px;
+          right: 0;
           height: 10px;
           width: 10px;
-          background: image-url('onion_skin_sprites.gif') -2px 0px no-repeat;
+          background: image-url('onion_skin_sprites.gif') -2px 0 no-repeat;
         }
 
         .opaque {
           display: block;
           position: absolute;
           top: 2px;
-          left: 0px;
+          left: 0;
           height: 10px;
           width: 10px;
           background: image-url('onion_skin_sprites.gif') -2px -10px no-repeat;
diff --git a/app/assets/stylesheets/pages/emojis.scss b/app/assets/stylesheets/pages/emojis.scss
index 6c721b514f8..b731abc7450 100644
--- a/app/assets/stylesheets/pages/emojis.scss
+++ b/app/assets/stylesheets/pages/emojis.scss
@@ -1,60 +1,60 @@
-.emoji-0023-20E3 { background-position: 0px 0px; }
-.emoji-002A-20E3 { background-position: -20px 0px; }
-.emoji-0030-20E3 { background-position: 0px -20px; }
+.emoji-0023-20E3 { background-position: 0 0; }
+.emoji-002A-20E3 { background-position: -20px 0; }
+.emoji-0030-20E3 { background-position: 0 -20px; }
 .emoji-0031-20E3 { background-position: -20px -20px; }
-.emoji-0032-20E3 { background-position: -40px 0px; }
+.emoji-0032-20E3 { background-position: -40px 0; }
 .emoji-0033-20E3 { background-position: -40px -20px; }
-.emoji-0034-20E3 { background-position: 0px -40px; }
+.emoji-0034-20E3 { background-position: 0 -40px; }
 .emoji-0035-20E3 { background-position: -20px -40px; }
 .emoji-0036-20E3 { background-position: -40px -40px; }
-.emoji-0037-20E3 { background-position: -60px 0px; }
+.emoji-0037-20E3 { background-position: -60px 0; }
 .emoji-0038-20E3 { background-position: -60px -20px; }
 .emoji-0039-20E3 { background-position: -60px -40px; }
-.emoji-00A9 { background-position: 0px -60px; }
+.emoji-00A9 { background-position: 0 -60px; }
 .emoji-00AE { background-position: -20px -60px; }
 .emoji-1F004 { background-position: -40px -60px; }
 .emoji-1F0CF { background-position: -60px -60px; }
-.emoji-1F170 { background-position: -80px 0px; }
+.emoji-1F170 { background-position: -80px 0; }
 .emoji-1F171 { background-position: -80px -20px; }
 .emoji-1F17E { background-position: -80px -40px; }
 .emoji-1F17F { background-position: -80px -60px; }
-.emoji-1F18E { background-position: 0px -80px; }
+.emoji-1F18E { background-position: 0 -80px; }
 .emoji-1F191 { background-position: -20px -80px; }
 .emoji-1F192 { background-position: -40px -80px; }
 .emoji-1F193 { background-position: -60px -80px; }
 .emoji-1F194 { background-position: -80px -80px; }
-.emoji-1F195 { background-position: -100px 0px; }
+.emoji-1F195 { background-position: -100px 0; }
 .emoji-1F196 { background-position: -100px -20px; }
 .emoji-1F197 { background-position: -100px -40px; }
 .emoji-1F198 { background-position: -100px -60px; }
 .emoji-1F199 { background-position: -100px -80px; }
-.emoji-1F19A { background-position: 0px -100px; }
+.emoji-1F19A { background-position: 0 -100px; }
 .emoji-1F1E6-1F1E8 { background-position: -20px -100px; }
 .emoji-1F1E6-1F1E9 { background-position: -40px -100px; }
 .emoji-1F1E6-1F1EA { background-position: -60px -100px; }
 .emoji-1F1E6-1F1EB { background-position: -80px -100px; }
 .emoji-1F1E6-1F1EC { background-position: -100px -100px; }
-.emoji-1F1E6-1F1EE { background-position: -120px 0px; }
+.emoji-1F1E6-1F1EE { background-position: -120px 0; }
 .emoji-1F1E6-1F1F1 { background-position: -120px -20px; }
 .emoji-1F1E6-1F1F2 { background-position: -120px -40px; }
 .emoji-1F1E6-1F1F4 { background-position: -120px -60px; }
 .emoji-1F1E6-1F1F6 { background-position: -120px -80px; }
 .emoji-1F1E6-1F1F7 { background-position: -120px -100px; }
-.emoji-1F1E6-1F1F8 { background-position: 0px -120px; }
+.emoji-1F1E6-1F1F8 { background-position: 0 -120px; }
 .emoji-1F1E6-1F1F9 { background-position: -20px -120px; }
 .emoji-1F1E6-1F1FA { background-position: -40px -120px; }
 .emoji-1F1E6-1F1FC { background-position: -60px -120px; }
 .emoji-1F1E6-1F1FD { background-position: -80px -120px; }
 .emoji-1F1E6-1F1FF { background-position: -100px -120px; }
 .emoji-1F1E7-1F1E6 { background-position: -120px -120px; }
-.emoji-1F1E7-1F1E7 { background-position: -140px 0px; }
+.emoji-1F1E7-1F1E7 { background-position: -140px 0; }
 .emoji-1F1E7-1F1E9 { background-position: -140px -20px; }
 .emoji-1F1E7-1F1EA { background-position: -140px -40px; }
 .emoji-1F1E7-1F1EB { background-position: -140px -60px; }
 .emoji-1F1E7-1F1EC { background-position: -140px -80px; }
 .emoji-1F1E7-1F1ED { background-position: -140px -100px; }
 .emoji-1F1E7-1F1EE { background-position: -140px -120px; }
-.emoji-1F1E7-1F1EF { background-position: 0px -140px; }
+.emoji-1F1E7-1F1EF { background-position: 0 -140px; }
 .emoji-1F1E7-1F1F1 { background-position: -20px -140px; }
 .emoji-1F1E7-1F1F2 { background-position: -40px -140px; }
 .emoji-1F1E7-1F1F3 { background-position: -60px -140px; }
@@ -62,7 +62,7 @@
 .emoji-1F1E7-1F1F6 { background-position: -100px -140px; }
 .emoji-1F1E7-1F1F7 { background-position: -120px -140px; }
 .emoji-1F1E7-1F1F8 { background-position: -140px -140px; }
-.emoji-1F1E7-1F1F9 { background-position: -160px 0px; }
+.emoji-1F1E7-1F1F9 { background-position: -160px 0; }
 .emoji-1F1E7-1F1FB { background-position: -160px -20px; }
 .emoji-1F1E7-1F1FC { background-position: -160px -40px; }
 .emoji-1F1E7-1F1FE { background-position: -160px -60px; }
@@ -70,7 +70,7 @@
 .emoji-1F1E8-1F1E6 { background-position: -160px -100px; }
 .emoji-1F1E8-1F1E8 { background-position: -160px -120px; }
 .emoji-1F1E8-1F1E9 { background-position: -160px -140px; }
-.emoji-1F1E8-1F1EB { background-position: 0px -160px; }
+.emoji-1F1E8-1F1EB { background-position: 0 -160px; }
 .emoji-1F1E8-1F1EC { background-position: -20px -160px; }
 .emoji-1F1E8-1F1ED { background-position: -40px -160px; }
 .emoji-1F1E8-1F1EE { background-position: -60px -160px; }
@@ -79,7 +79,7 @@
 .emoji-1F1E8-1F1F2 { background-position: -120px -160px; }
 .emoji-1F1E8-1F1F3 { background-position: -140px -160px; }
 .emoji-1F1E8-1F1F4 { background-position: -160px -160px; }
-.emoji-1F1E8-1F1F5 { background-position: -180px 0px; }
+.emoji-1F1E8-1F1F5 { background-position: -180px 0; }
 .emoji-1F1E8-1F1F7 { background-position: -180px -20px; }
 .emoji-1F1E8-1F1FA { background-position: -180px -40px; }
 .emoji-1F1E8-1F1FB { background-position: -180px -60px; }
@@ -88,7 +88,7 @@
 .emoji-1F1E8-1F1FE { background-position: -180px -120px; }
 .emoji-1F1E8-1F1FF { background-position: -180px -140px; }
 .emoji-1F1E9-1F1EA { background-position: -180px -160px; }
-.emoji-1F1E9-1F1EC { background-position: 0px -180px; }
+.emoji-1F1E9-1F1EC { background-position: 0 -180px; }
 .emoji-1F1E9-1F1EF { background-position: -20px -180px; }
 .emoji-1F1E9-1F1F0 { background-position: -40px -180px; }
 .emoji-1F1E9-1F1F2 { background-position: -60px -180px; }
@@ -98,7 +98,7 @@
 .emoji-1F1EA-1F1E8 { background-position: -140px -180px; }
 .emoji-1F1EA-1F1EA { background-position: -160px -180px; }
 .emoji-1F1EA-1F1EC { background-position: -180px -180px; }
-.emoji-1F1EA-1F1ED { background-position: -200px 0px; }
+.emoji-1F1EA-1F1ED { background-position: -200px 0; }
 .emoji-1F1EA-1F1F7 { background-position: -200px -20px; }
 .emoji-1F1EA-1F1F8 { background-position: -200px -40px; }
 .emoji-1F1EA-1F1F9 { background-position: -200px -60px; }
@@ -108,7 +108,7 @@
 .emoji-1F1EB-1F1F0 { background-position: -200px -140px; }
 .emoji-1F1EB-1F1F2 { background-position: -200px -160px; }
 .emoji-1F1EB-1F1F4 { background-position: -200px -180px; }
-.emoji-1F1EB-1F1F7 { background-position: 0px -200px; }
+.emoji-1F1EB-1F1F7 { background-position: 0 -200px; }
 .emoji-1F1EC-1F1E6 { background-position: -20px -200px; }
 .emoji-1F1EC-1F1E7 { background-position: -40px -200px; }
 .emoji-1F1EC-1F1E9 { background-position: -60px -200px; }
@@ -119,7 +119,7 @@
 .emoji-1F1EC-1F1EE { background-position: -160px -200px; }
 .emoji-1F1EC-1F1F1 { background-position: -180px -200px; }
 .emoji-1F1EC-1F1F2 { background-position: -200px -200px; }
-.emoji-1F1EC-1F1F3 { background-position: -220px 0px; }
+.emoji-1F1EC-1F1F3 { background-position: -220px 0; }
 .emoji-1F1EC-1F1F5 { background-position: -220px -20px; }
 .emoji-1F1EC-1F1F6 { background-position: -220px -40px; }
 .emoji-1F1EC-1F1F7 { background-position: -220px -60px; }
@@ -130,7 +130,7 @@
 .emoji-1F1EC-1F1FE { background-position: -220px -160px; }
 .emoji-1F1ED-1F1F0 { background-position: -220px -180px; }
 .emoji-1F1ED-1F1F2 { background-position: -220px -200px; }
-.emoji-1F1ED-1F1F3 { background-position: 0px -220px; }
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 .emoji-1F497 { background-position: -600px -540px; }
 .emoji-1F498 { background-position: -600px -560px; }
 .emoji-1F499 { background-position: -600px -580px; }
-.emoji-1F49A { background-position: 0px -600px; }
+.emoji-1F49A { background-position: 0 -600px; }
 .emoji-1F49B { background-position: -20px -600px; }
 .emoji-1F49C { background-position: -40px -600px; }
 .emoji-1F49D { background-position: -60px -600px; }
@@ -959,7 +959,7 @@
 .emoji-1F4B1 { background-position: -560px -600px; }
 .emoji-1F4B2 { background-position: -580px -600px; }
 .emoji-1F4B3 { background-position: -600px -600px; }
-.emoji-1F4B4 { background-position: -620px 0px; }
+.emoji-1F4B4 { background-position: -620px 0; }
 .emoji-1F4B5 { background-position: -620px -20px; }
 .emoji-1F4B6 { background-position: -620px -40px; }
 .emoji-1F4B7 { background-position: -620px -60px; }
@@ -990,7 +990,7 @@
 .emoji-1F4D0 { background-position: -620px -560px; }
 .emoji-1F4D1 { background-position: -620px -580px; }
 .emoji-1F4D2 { background-position: -620px -600px; }
-.emoji-1F4D3 { background-position: 0px -620px; }
+.emoji-1F4D3 { background-position: 0 -620px; }
 .emoji-1F4D4 { background-position: -20px -620px; }
 .emoji-1F4D5 { background-position: -40px -620px; }
 .emoji-1F4D6 { background-position: -60px -620px; }
@@ -1022,7 +1022,7 @@
 .emoji-1F4F0 { background-position: -580px -620px; }
 .emoji-1F4F1 { background-position: -600px -620px; }
 .emoji-1F4F2 { background-position: -620px -620px; }
-.emoji-1F4F3 { background-position: -640px 0px; }
+.emoji-1F4F3 { background-position: -640px 0; }
 .emoji-1F4F4 { background-position: -640px -20px; }
 .emoji-1F4F5 { background-position: -640px -40px; }
 .emoji-1F4F6 { background-position: -640px -60px; }
@@ -1054,7 +1054,7 @@
 .emoji-1F510 { background-position: -640px -580px; }
 .emoji-1F511 { background-position: -640px -600px; }
 .emoji-1F512 { background-position: -640px -620px; }
-.emoji-1F513 { background-position: 0px -640px; }
+.emoji-1F513 { background-position: 0 -640px; }
 .emoji-1F514 { background-position: -20px -640px; }
 .emoji-1F515 { background-position: -40px -640px; }
 .emoji-1F516 { background-position: -60px -640px; }
@@ -1087,7 +1087,7 @@
 .emoji-1F531 { background-position: -600px -640px; }
 .emoji-1F532 { background-position: -620px -640px; }
 .emoji-1F533 { background-position: -640px -640px; }
-.emoji-1F534 { background-position: -660px 0px; }
+.emoji-1F534 { background-position: -660px 0; }
 .emoji-1F535 { background-position: -660px -20px; }
 .emoji-1F536 { background-position: -660px -40px; }
 .emoji-1F537 { background-position: -660px -60px; }
@@ -1120,7 +1120,7 @@
 .emoji-1F55B { background-position: -660px -600px; }
 .emoji-1F55C { background-position: -660px -620px; }
 .emoji-1F55D { background-position: -660px -640px; }
-.emoji-1F55E { background-position: 0px -660px; }
+.emoji-1F55E { background-position: 0 -660px; }
 .emoji-1F55F { background-position: -20px -660px; }
 .emoji-1F560 { background-position: -40px -660px; }
 .emoji-1F561 { background-position: -60px -660px; }
@@ -1154,7 +1154,7 @@
 .emoji-1F578 { background-position: -620px -660px; }
 .emoji-1F579 { background-position: -640px -660px; }
 .emoji-1F57B { background-position: -660px -660px; }
-.emoji-1F57E { background-position: -680px 0px; }
+.emoji-1F57E { background-position: -680px 0; }
 .emoji-1F57F { background-position: -680px -20px; }
 .emoji-1F581 { background-position: -680px -40px; }
 .emoji-1F582 { background-position: -680px -60px; }
@@ -1188,7 +1188,7 @@
 .emoji-1F595-1F3FF { background-position: -680px -620px; }
 .emoji-1F596 { background-position: -680px -640px; }
 .emoji-1F596-1F3FB { background-position: -680px -660px; }
-.emoji-1F596-1F3FC { background-position: 0px -680px; }
+.emoji-1F596-1F3FC { background-position: 0 -680px; }
 .emoji-1F596-1F3FD { background-position: -20px -680px; }
 .emoji-1F596-1F3FE { background-position: -40px -680px; }
 .emoji-1F596-1F3FF { background-position: -60px -680px; }
@@ -1223,7 +1223,7 @@
 .emoji-1F5C4 { background-position: -640px -680px; }
 .emoji-1F5C6 { background-position: -660px -680px; }
 .emoji-1F5C7 { background-position: -680px -680px; }
-.emoji-1F5C9 { background-position: -700px 0px; }
+.emoji-1F5C9 { background-position: -700px 0; }
 .emoji-1F5CA { background-position: -700px -20px; }
 .emoji-1F5CE { background-position: -700px -40px; }
 .emoji-1F5CF { background-position: -700px -60px; }
@@ -1258,7 +1258,7 @@
 .emoji-1F5F8 { background-position: -700px -640px; }
 .emoji-1F5F9 { background-position: -700px -660px; }
 .emoji-1F5FA { background-position: -700px -680px; }
-.emoji-1F5FB { background-position: 0px -700px; }
+.emoji-1F5FB { background-position: 0 -700px; }
 .emoji-1F5FC { background-position: -20px -700px; }
 .emoji-1F5FD { background-position: -40px -700px; }
 .emoji-1F5FE { background-position: -60px -700px; }
@@ -1294,7 +1294,7 @@
 .emoji-1F61C { background-position: -660px -700px; }
 .emoji-1F61D { background-position: -680px -700px; }
 .emoji-1F61E { background-position: -700px -700px; }
-.emoji-1F61F { background-position: -720px 0px; }
+.emoji-1F61F { background-position: -720px 0; }
 .emoji-1F620 { background-position: -720px -20px; }
 .emoji-1F621 { background-position: -720px -40px; }
 .emoji-1F622 { background-position: -720px -60px; }
@@ -1330,7 +1330,7 @@
 .emoji-1F640 { background-position: -720px -660px; }
 .emoji-1F641 { background-position: -720px -680px; }
 .emoji-1F642 { background-position: -720px -700px; }
-.emoji-1F643 { background-position: 0px -720px; }
+.emoji-1F643 { background-position: 0 -720px; }
 .emoji-1F644 { background-position: -20px -720px; }
 .emoji-1F645 { background-position: -40px -720px; }
 .emoji-1F645-1F3FB { background-position: -60px -720px; }
@@ -1367,7 +1367,7 @@
 .emoji-1F64C-1F3FF { background-position: -680px -720px; }
 .emoji-1F64D { background-position: -700px -720px; }
 .emoji-1F64D-1F3FB { background-position: -720px -720px; }
-.emoji-1F64D-1F3FC { background-position: -740px 0px; }
+.emoji-1F64D-1F3FC { background-position: -740px 0; }
 .emoji-1F64D-1F3FD { background-position: -740px -20px; }
 .emoji-1F64D-1F3FE { background-position: -740px -40px; }
 .emoji-1F64D-1F3FF { background-position: -740px -60px; }
@@ -1404,7 +1404,7 @@
 .emoji-1F692 { background-position: -740px -680px; }
 .emoji-1F693 { background-position: -740px -700px; }
 .emoji-1F694 { background-position: -740px -720px; }
-.emoji-1F695 { background-position: 0px -740px; }
+.emoji-1F695 { background-position: 0 -740px; }
 .emoji-1F696 { background-position: -20px -740px; }
 .emoji-1F697 { background-position: -40px -740px; }
 .emoji-1F698 { background-position: -60px -740px; }
@@ -1442,7 +1442,7 @@
 .emoji-1F6B3 { background-position: -700px -740px; }
 .emoji-1F6B4 { background-position: -720px -740px; }
 .emoji-1F6B4-1F3FB { background-position: -740px -740px; }
-.emoji-1F6B4-1F3FC { background-position: -760px 0px; }
+.emoji-1F6B4-1F3FC { background-position: -760px 0; }
 .emoji-1F6B4-1F3FD { background-position: -760px -20px; }
 .emoji-1F6B4-1F3FE { background-position: -760px -40px; }
 .emoji-1F6B4-1F3FF { background-position: -760px -60px; }
@@ -1480,7 +1480,7 @@
 .emoji-1F6C5 { background-position: -760px -700px; }
 .emoji-1F6C6 { background-position: -760px -720px; }
 .emoji-1F6C7 { background-position: -760px -740px; }
-.emoji-1F6C8 { background-position: 0px -760px; }
+.emoji-1F6C8 { background-position: 0 -760px; }
 .emoji-1F6C9 { background-position: -20px -760px; }
 .emoji-1F6CA { background-position: -40px -760px; }
 .emoji-1F6CB { background-position: -60px -760px; }
@@ -1519,7 +1519,7 @@
 .emoji-1F918-1F3FC { background-position: -720px -760px; }
 .emoji-1F918-1F3FD { background-position: -740px -760px; }
 .emoji-1F918-1F3FE { background-position: -760px -760px; }
-.emoji-1F918-1F3FF { background-position: -780px 0px; }
+.emoji-1F918-1F3FF { background-position: -780px 0; }
 .emoji-1F980 { background-position: -780px -20px; }
 .emoji-1F981 { background-position: -780px -40px; }
 .emoji-1F982 { background-position: -780px -60px; }
@@ -1558,7 +1558,7 @@
 .emoji-24C2 { background-position: -780px -720px; }
 .emoji-25AA { background-position: -780px -740px; }
 .emoji-25AB { background-position: -780px -760px; }
-.emoji-25B6 { background-position: 0px -780px; }
+.emoji-25B6 { background-position: 0 -780px; }
 .emoji-25C0 { background-position: -20px -780px; }
 .emoji-25FB { background-position: -40px -780px; }
 .emoji-25FC { background-position: -60px -780px; }
@@ -1598,7 +1598,7 @@
 .emoji-264D { background-position: -740px -780px; }
 .emoji-264E { background-position: -760px -780px; }
 .emoji-264F { background-position: -780px -780px; }
-.emoji-2650 { background-position: -800px 0px; }
+.emoji-2650 { background-position: -800px 0; }
 .emoji-2651 { background-position: -800px -20px; }
 .emoji-2652 { background-position: -800px -40px; }
 .emoji-2653 { background-position: -800px -60px; }
@@ -1638,7 +1638,7 @@
 .emoji-26F0 { background-position: -800px -740px; }
 .emoji-26F1 { background-position: -800px -760px; }
 .emoji-26F2 { background-position: -800px -780px; }
-.emoji-26F3 { background-position: 0px -800px; }
+.emoji-26F3 { background-position: 0 -800px; }
 .emoji-26F4 { background-position: -20px -800px; }
 .emoji-26F5 { background-position: -40px -800px; }
 .emoji-26F7 { background-position: -60px -800px; }
@@ -1679,7 +1679,7 @@
 .emoji-270D-1F3FD { background-position: -760px -800px; }
 .emoji-270D-1F3FE { background-position: -780px -800px; }
 .emoji-270D-1F3FF { background-position: -800px -800px; }
-.emoji-270F { background-position: -820px 0px; }
+.emoji-270F { background-position: -820px 0; }
 .emoji-2712 { background-position: -820px -20px; }
 .emoji-2714 { background-position: -820px -40px; }
 .emoji-2716 { background-position: -820px -60px; }
diff --git a/app/assets/stylesheets/pages/events.scss b/app/assets/stylesheets/pages/events.scss
index 1833e2136b1..e7da0a2f689 100644
--- a/app/assets/stylesheets/pages/events.scss
+++ b/app/assets/stylesheets/pages/events.scss
@@ -63,7 +63,7 @@
 
       .note-image-attach {
         margin-top: 4px;
-        margin-left: 0px;
+        margin-left: 0;
         max-width: 200px;
         float: none;
       }
diff --git a/app/assets/stylesheets/pages/import.scss b/app/assets/stylesheets/pages/import.scss
index 3df4bb84bd2..6a99cd9cb94 100644
--- a/app/assets/stylesheets/pages/import.scss
+++ b/app/assets/stylesheets/pages/import.scss
@@ -1,6 +1,6 @@
 i.icon-gitorious {
   display: inline-block;
-  background-position: 0px 0px;
+  background-position: 0 0;
   background-size: contain;
   background-repeat: no-repeat;
 }
diff --git a/app/assets/stylesheets/pages/login.scss b/app/assets/stylesheets/pages/login.scss
index 6c35a74f087..d9c47881265 100644
--- a/app/assets/stylesheets/pages/login.scss
+++ b/app/assets/stylesheets/pages/login.scss
@@ -39,7 +39,7 @@
   .login-box{
     background: #fafafa;
     border-radius: 10px;
-    box-shadow: 0 0px 2px #ccc;
+    box-shadow: 0 0 2px #ccc;
     padding: 15px;
 
     .login-heading h3 {
@@ -74,7 +74,7 @@
 
     &.top {
       @include border-radius(5px 5px 0 0);
-      margin-bottom: 0px;
+      margin-bottom: 0;
     }
 
     &.bottom {
@@ -85,7 +85,7 @@
 
     &.middle {
       border-top: 0;
-      margin-bottom:0px;
+      margin-bottom:0;
       @include border-radius(0);
     }
 
diff --git a/app/assets/stylesheets/pages/notes.scss b/app/assets/stylesheets/pages/notes.scss
index 1f631ab03eb..969c79a9be9 100644
--- a/app/assets/stylesheets/pages/notes.scss
+++ b/app/assets/stylesheets/pages/notes.scss
@@ -11,8 +11,8 @@
 ul.notes {
   display: block;
   list-style: none;
-  margin: 0px;
-  padding: 0px;
+  margin: 0;
+  padding: 0;
 
   .timeline-icon {
     float: left;
diff --git a/app/assets/stylesheets/pages/profile.scss b/app/assets/stylesheets/pages/profile.scss
index ecfe0e37c85..260179074cf 100644
--- a/app/assets/stylesheets/pages/profile.scss
+++ b/app/assets/stylesheets/pages/profile.scss
@@ -30,7 +30,7 @@
   .btn {
     line-height: 40px;
     height: 42px;
-    padding: 0px 12px;
+    padding: 0 12px;
 
     img {
       width: 32px;
diff --git a/app/assets/stylesheets/pages/projects.scss b/app/assets/stylesheets/pages/projects.scss
index a29b735eb0f..3fe2c9a3346 100644
--- a/app/assets/stylesheets/pages/projects.scss
+++ b/app/assets/stylesheets/pages/projects.scss
@@ -85,7 +85,7 @@
 
   .project-repo-buttons {
     margin-top: 20px;
-    margin-bottom: 0px;
+    margin-bottom: 0;
 
     .count-buttons {
       display: block;
@@ -162,7 +162,7 @@
         cursor: pointer;
         background-image: none;
         white-space: nowrap;
-        margin: 0 11px 0px 4px;
+        margin: 0 11px 0 4px;
 
         &:hover {
           background: #fff;
@@ -210,7 +210,7 @@
 }
 
 .project_member_row form {
-  margin: 0px;
+  margin: 0;
 }
 
 .transfer-project .select2-container {
diff --git a/app/assets/stylesheets/pages/sherlock.scss b/app/assets/stylesheets/pages/sherlock.scss
index 92d84d9640f..bed6470dbd3 100644
--- a/app/assets/stylesheets/pages/sherlock.scss
+++ b/app/assets/stylesheets/pages/sherlock.scss
@@ -13,13 +13,13 @@ table .sherlock-code {
 }
 
 .sherlock-line-samples-table {
-  margin-bottom: 0px !important;
+  margin-bottom: 0 !important;
 
   thead tr th,
   tbody tr td {
     font-size: 13px !important;
     text-align: right;
-    padding: 0px 10px !important;
+    padding: 0 10px !important;
   }
 }
 
diff --git a/app/assets/stylesheets/pages/todos.scss b/app/assets/stylesheets/pages/todos.scss
index 2ab40941c4e..27970eba159 100644
--- a/app/assets/stylesheets/pages/todos.scss
+++ b/app/assets/stylesheets/pages/todos.scss
@@ -61,7 +61,7 @@
 
       .note-image-attach {
         margin-top: 4px;
-        margin-left: 0px;
+        margin-left: 0;
         max-width: 200px;
         float: none;
       }
diff --git a/lib/tasks/gemojione.rake b/lib/tasks/gemojione.rake
index ebe301c1fc7..cfaf4a129b1 100644
--- a/lib/tasks/gemojione.rake
+++ b/lib/tasks/gemojione.rake
@@ -47,6 +47,7 @@ namespace :gemojione do
       # let's simplify it
       system(%Q(sed -i '' "s/width: #{SIZE}px; height: #{SIZE}px; background: image-url('emoji.png')/background-position:/" #{style_path}))
       system(%Q(sed -i '' "s/ no-repeat//" #{style_path}))
+      system(%Q(sed -i '' "s/ 0px/ 0/" #{style_path}))
 
       # Append a generic rule that applies to all Emojis
       File.open(style_path, 'a') do |f|