Added some uniformity, all css properties and values are separated by a colon and a space :

app/assets/stylesheets/sections/commits.scss

@@ -6,14 +6,14 @@
 
     .commit-title {
       line-height: 26px;
-      margin:0;
+      margin: 0;
     }
 
     .commit-description {
       font-size: 14px;
       border: none;
       background-color: white;
-      padding-top:10px;
+      padding-top: 10px;
     }
 
     .browse-button {
@@ -28,9 +28,9 @@
     @extend .clearfix;
 
     .sha-block {
-      text-align:right;
+      text-align: right;
       &:first-child {
-        padding-bottom:6px;
+        padding-bottom: 6px;
       }
 
       a {
@@ -49,8 +49,8 @@
 
     .author a,
     .committer a {
-      font-size:14px;
-      line-height:22px;
+      font-size: 14px;
+      line-height: 22px;
       text-shadow:0 1px 1px #fff;
       color:#777;
       &:hover {
@@ -71,7 +71,7 @@
  */
 .diff_file {
   border:1px solid #CCC;
-  margin-bottom:1em;
+  margin-bottom: 1em;
 
   .diff_file_header {
     @extend .clearfix;
@@ -86,7 +86,7 @@
 
     > span {
       font-family: $monospace;
-      font-size:14px;
+      font-size: 14px;
       line-height: 30px;
     }
 
@@ -104,8 +104,8 @@
     }
   }
   .diff_file_content {
-    overflow:auto;
-    overflow-y:hidden;
+    overflow: auto;
+    overflow-y: hidden;
     background:#fff;
     color:#333;
     font-size: 12px;
@@ -123,17 +123,17 @@
 
     table {
       td {
-        line-height:18px;
+        line-height: 18px;
       }
     }
   }
   .diff_file_content_image {
     background:#eee;
-    text-align:center;
+    text-align: center;
     .image {
       display: inline-block;
-      margin:50px;
-      max-width:400px;
+      margin: 50px;
+      max-width: 400px;
 
       img{
         background: url('trans_bg.gif');
@@ -158,7 +158,7 @@
 
     &.img_compared {
       .image {
-        max-width:300px;
+        max-width: 300px;
       }
     }
   }
@@ -166,46 +166,46 @@
 
 .diff_file_content{
   table {
-    border:none;
-    margin:0px;
-    padding:0px;
+    border: none;
+    margin: 0px;
+    padding: 0px;
     tr {
       td {
-        font-size:12px;
+        font-size: 12px;
       }
     }
   }
   .old_line, .new_line {
-    margin:0px;
-    padding:0px;
-    border:none;
+    margin: 0px;
+    padding: 0px;
+    border: none;
     background:#EEE;
     color:#666;
     padding: 0px 5px;
     border-right: 1px solid #ccc;
-    text-align:right;
-    min-width:35px;
-    max-width:35px;
-    width:35px;
+    text-align: right;
+    min-width: 35px;
+    max-width: 35px;
+    width: 35px;
     moz-user-select: none;
     -khtml-user-select: none;
     user-select: none;
     a {
-      float:left;
-      width:35px;
-      font-weight:normal;
+      float: left;
+      width: 35px;
+      font-weight: normal;
       color:#666;
       &:hover {
-        text-decoration:underline;
+        text-decoration: underline;
       }
     }
   }
   .line_content {
-    white-space:pre;
-    height:14px;
-    margin:0px;
-    padding:0px;
-    border:none;
+    white-space: pre;
+    height: 14px;
+    margin: 0px;
+    padding: 0px;
+    border: none;
     &.new {
       background: #CFD;
     }
@@ -232,28 +232,28 @@
 
   .browse_code_link_holder {
     @extend .span2;
-    float:right;
+    float: right;
   }
 
   .committed_ago {
-    float:right;
+    float: right;
     @extend .cgray;
   }
 
   .notes_count {
-    float:right;
+    float: right;
     margin: -6px 8px 6px;
   }
 
   code {
     background:#FCEEC1;
-    color:$style_color;
+    color: $style_color;
   }
 
   .commit_short_id {
-    float:left;
+    float: left;
     @extend .lined;
-    min-width:65px;
+    min-width: 65px;
     font-family: $monospace;
   }
 
@@ -296,8 +296,8 @@
 .label_commit {
   @include round-borders-all(4px);
   padding:2px 4px;
-  border:none;
-  font-size:13px;
+  border: none;
+  font-size: 13px;
   background: #474D57;
   color:#fff;
   font-family: $monospace;