diff --git a/.scss-lint.yml b/.scss-lint.yml
index e9477d5..a981c3b 100644
--- a/.scss-lint.yml
+++ b/.scss-lint.yml
@@ -12,7 +12,7 @@ linters:
     enabled: true
 
   ColorVariable:
-    enabled: false
+    enabled: true
 
   Comment:
     enabled: false
@@ -23,6 +23,9 @@ linters:
   DeclarationOrder:
     enabled: true
 
+  DisableLinterReason:
+    enabled: true
+
   DuplicateProperty:
     enabled: true
 
@@ -37,6 +40,9 @@ linters:
   EmptyRule:
     enabled: true
 
+  ExtendDirective:
+    enabled: false
+
   FinalNewline:
     enabled: true
     present: true
@@ -94,7 +100,11 @@ linters:
 
   PropertySpelling:
     enabled: true
-    extra_properties: ["icon-shadow","outline-radius"]
+    extra_properties: [ "icon-shadow", "outline-radius" ]
+
+  PropertyUnits:
+    enabled: true
+    global: [ "px", "%", "s", "ms" ]
 
   QualifyingElement:
     enabled: false
@@ -130,13 +140,19 @@ linters:
   SpaceAfterPropertyName:
     enabled: true
 
+  SpaceAfterVariableName:
+    enabled: true
+
+  SpaceAroundOperator:
+    enabled: true
+
   SpaceBeforeBrace:
     enabled: true
     style: space
     allow_single_line_padding: true
 
   SpaceBetweenParens:
-    enabled: false
+    enabled: true
     spaces: 0
 
   StringQuotes:
diff --git a/gtk-3.0/scss/_global.scss b/gtk-3.0/scss/_global.scss
index e2b70ee..3dfab07 100755
--- a/gtk-3.0/scss/_global.scss
+++ b/gtk-3.0/scss/_global.scss
@@ -1,3 +1,5 @@
+// scss-lint:disable ColorVariable
+
 @import "functions";
 
 // default color scheme
diff --git a/gtk-3.0/scss/widgets/_infobar.scss b/gtk-3.0/scss/widgets/_infobar.scss
index 9b5a679..4351c9b 100644
--- a/gtk-3.0/scss/widgets/_infobar.scss
+++ b/gtk-3.0/scss/widgets/_infobar.scss
@@ -10,10 +10,10 @@
         border: 0;
 
         $types: (
-            info: ( $info_fg_color, $info_bg_color ),
-            warning: ( $warning_fg_color, $warning_bg_color ),
-            question: ( $question_fg_color, $question_bg_color ),
-            error: ( $error_fg_color, $error_bg_color ),
+            info: ($info_fg_color, $info_bg_color),
+            warning: ($warning_fg_color, $warning_bg_color),
+            question: ($question_fg_color, $question_bg_color),
+            error: ($error_fg_color, $error_bg_color),
         );