+ $content-full style variable

src/style/variables.scss

@@ -2,6 +2,7 @@
 $mobile-width: 31.25em;
 $desktop-width: 59.99999em;
 
+$content-full: 100%;
 $content-wide: 80%;
 $content-semi-wide: 70%;
 $content-thin: 60%;