diff --git a/res/css/_font-sizes.scss b/res/css/_font-sizes.scss
index ad9e2e7103..b37b2eb3c2 100644
--- a/res/css/_font-sizes.scss
+++ b/res/css/_font-sizes.scss
@@ -14,6 +14,13 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+$font-1px: 0.067rem;
+$font-2px: 0.133rem;
+$font-3px: 0.200rem;
+$font-4px: 0.267rem;
+$font-5px: 0.333rem;
+$font-6px: 0.400rem;
+$font-7px: 0.467rem;
 $font-8px: 0.533rem;
 $font-9px: 0.600rem;
 $font-10px: 0.667rem;
diff --git a/res/css/views/elements/_RichText.scss b/res/css/views/elements/_RichText.scss
index d46d07e82b..5b5759b794 100644
--- a/res/css/views/elements/_RichText.scss
+++ b/res/css/views/elements/_RichText.scss
@@ -26,7 +26,7 @@ a.mx_Pill {
 }
 
 .mx_Pill {
-    padding: 0.3rem;
+    padding: $font-5px;
 }
 
 /* More specific to override `.markdown-body a` text-decoration */