diff --git a/_sass/_variables.scss b/_sass/_variables.scss
index fc37bae..a95b8e6 100644
--- a/_sass/_variables.scss
+++ b/_sass/_variables.scss
@@ -11,3 +11,19 @@ $body-font: -apple-system, BlinkMacSystemFont,
 	"Segoe UI", Roboto, "Helvetica Neue", Arial,
 	"Noto Sans", sans-serif, "Apple Color Emoji",
 	"Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+
+
+// Heading sizes - mobile
+$h0-size-mobile: 31px;
+$h1-size-mobile: 25px;
+$h2-size-mobile: 21px;
+$h3-size-mobile: 17px;
+
+// Heading sizes - desktop
+$h0-size: 39px;
+$h1-size: 31px;
+$h2-size: 23px;
+$h3-size: 19px;
+$h4-size: 15px;
+$h5-size: 13px;
+$h6-size: 12px;