diff --git a/website/Makefile b/website/Makefile
index ffd2f754..ffd5ead0 100644
--- a/website/Makefile
+++ b/website/Makefile
@@ -1,12 +1,12 @@
+serve: install
+	bundle exec jekyll serve --livereload
+
 install:
 	bundle install
 
 build: install
 	bundle exec jekyll build
 
-serve: install
-	bundle exec jekyll serve --livereload
-
 check_links: build
 	bundle exec htmlproofer --allow_missing_href true --ignore_missing_alt true --swap_urls "^\/ComputingBootCamp:" --ignore-status-codes "0,301,302,403,429,500,503", --enforce_https false ./_site
 
diff --git a/website/_sass/_base.scss b/website/_sass/_base.scss
index d15b2bf8..9e92964b 100644
--- a/website/_sass/_base.scss
+++ b/website/_sass/_base.scss
@@ -53,7 +53,7 @@ ol,
 dl,
 figure,
 %vertical-rhythm {
-    margin-bottom: $spacing-unit / 2;
+    margin-bottom: calc($spacing-unit / 2);
 }
 
 h1,
@@ -134,7 +134,7 @@ a {
 blockquote {
     color: $grey-color;
     border-left: 4px solid $grey-color-light;
-    padding-left: $spacing-unit / 2;
+    padding-left: calc($spacing-unit / 2);
     font-size: 18px;
     letter-spacing: -1px;
     font-style: italic;
@@ -185,8 +185,8 @@ pre {
     @include media-query($on-laptop) {
         max-width: -webkit-calc(#{$content-width} - (#{$spacing-unit}));
         max-width: calc(#{$content-width} - (#{$spacing-unit}));
-        padding-right: $spacing-unit / 2;
-        padding-left: $spacing-unit / 2;
+        padding-right: calc($spacing-unit / 2);
+        padding-left: calc($spacing-unit / 2);
     }
 }