diff --git a/scss/base/variables.scss b/scss/base/variables.scss
index edffd0c..4a0cad9 100644
--- a/scss/base/variables.scss
+++ b/scss/base/variables.scss
@@ -2,40 +2,40 @@
 $font-family: "Press Start 2P" !default;
 $font-size: 16px !default;
 
-$base-color: $color-black;
-$background-color: $color-white;
+$base-color: $color-black !default;
+$background-color: $color-white !default;
 
-$cursor-url: url(../assets/cursor.png);
-$cursor-click-url: url(../assets/cursor-click.png);
+$cursor-url: url(../assets/cursor.png) !default;
+$cursor-click-url: url(../assets/cursor-click.png) !default;
 
-$border-size: 4px;
+$border-size: 4px !default;
 
 $default-colors: (
   normal: $background-color,
   hover: #e7e7e7,
   shadow: #adafbc
-);
+) !default;
 $disabled-colors: (
   normal: #d3d3d3,
   shadow: #adafbc
-);
+) !default;
 $primary-colors: (
   normal: #209cee,
   hover: #108de0,
   shadow: #006bb3
-);
+) !default;
 $success-colors: (
   normal: #92cc41,
   hover: #76c442,
   shadow: #4aa52e
-);
+) !default;
 $warning-colors: (
   normal: #f7d51d,
   hover: #f2c409,
   shadow: #e59400
-);
+) !default;
 $error-colors: (
   normal: #e76e55,
   hover: #ce372b,
   shadow: #8c2022
-);
+) !default;