diff --git a/sp.css b/sp.css
index 10cf951..d44975d 100644
--- a/sp.css
+++ b/sp.css
@@ -1,6 +1,6 @@
 body {
   color: #333;
-  font-family: helvetica, arial, sans-serif;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
   line-height: 1.5;
   margin: 0 auto;
   max-width: 40em;