diff --git a/challenges/06-custom-props/_breakpoints.scss b/challenges/06-custom-props/_breakpoints.scss
new file mode 100644
index 0000000..af98e92
--- /dev/null
+++ b/challenges/06-custom-props/_breakpoints.scss
@@ -0,0 +1,5 @@
+$breakpoints: (
+  small: 30em,
+  medium: 45em,
+  large: 65em
+);
diff --git a/challenges/06-custom-props/_font-sizes.scss b/challenges/06-custom-props/_font-sizes.scss
new file mode 100644
index 0000000..2cc6709
--- /dev/null
+++ b/challenges/06-custom-props/_font-sizes.scss
@@ -0,0 +1,26 @@
+$font-sizes: (
+  'small': (
+    '900': 3rem,
+    '800': 2.625rem,
+    '700': 1.75rem,
+    '600': 1.25rem,
+    '500': 1.125rem,
+    '400': 1rem
+  ),
+  'medium': (
+    '900': 3.25rem,
+    '800': 2.75rem,
+    '700': 1.75rem,
+    '600': 1.5rem,
+    '500': 1.125rem,
+    '400': 1rem
+  ),
+  'large': (
+    '900': 3.75rem,
+    '800': 3rem,
+    '700': 2rem,
+    '600': 1.5rem,
+    '500': 1.25rem,
+    '400': 1rem
+  )
+);
diff --git a/challenges/06-custom-props/_mixins.scss b/challenges/06-custom-props/_mixins.scss
new file mode 100644
index 0000000..d2ee4d3
--- /dev/null
+++ b/challenges/06-custom-props/_mixins.scss
@@ -0,0 +1,23 @@
+@use 'sass:map';
+@use 'sass:math';
+@use 'sass:meta';
+@use 'breakpoints' as *;
+
+@mixin mq($size) {
+  @if map.has-key($breakpoints, $size) {
+    $breakpoint: map-get($breakpoints, $size);
+    @media screen and (min-width: $breakpoint) {
+      @content;
+    }
+  } @else if meta.type-of($size) == number {
+    @if math.is-unitless($size) {
+      @error 'when using a number with @mq() make sure to include a unit';
+    } @else {
+      @media screen and (min-width: $size) {
+        @content;
+      }
+    }
+  } @else {
+    @error 'the keyword #{$size} is not in the $breakpoints map';
+  }
+}
diff --git a/challenges/06-custom-props/main.scss b/challenges/06-custom-props/main.scss
new file mode 100644
index 0000000..70d7e74
--- /dev/null
+++ b/challenges/06-custom-props/main.scss
@@ -0,0 +1,5 @@
+@use 'sass:map';
+@use 'font-sizes' as *;
+@use 'mixins' as *;
+@use 'breakpoints' as *;
+
diff --git a/projects/05-barber-shop/design and assets/assets/hair-cut.jpg b/projects/05-barber-shop/design and assets/assets/hair-cut.jpg
new file mode 100644
index 0000000..69dfab9
Binary files /dev/null and b/projects/05-barber-shop/design and assets/assets/hair-cut.jpg differ
diff --git a/projects/05-barber-shop/design and assets/assets/logo.svg b/projects/05-barber-shop/design and assets/assets/logo.svg
new file mode 100644
index 0000000..fdda025
--- /dev/null
+++ b/projects/05-barber-shop/design and assets/assets/logo.svg	
@@ -0,0 +1,3 @@
+<svg width="192" height="24" viewBox="0 0 192 24" fill="none" xmlns="http://www.w3.org/2000/svg">
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+</svg>
diff --git a/projects/05-barber-shop/design and assets/design/Design System/Design System - Colors.jpg b/projects/05-barber-shop/design and assets/design/Design System/Design System - Colors.jpg
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