diff --git a/style/style.css b/style/style.css
index 9ab857e..1537f13 100644
--- a/style/style.css
+++ b/style/style.css
@@ -251,3 +251,8 @@ noscript {
 .map-note { margin-left: 0.5rem; }
 .map-note span:first-child { font-size: 1.2rem; margin-right: 0.3rem; }
 .map-note span:last-child { vertical-align: sub; }
+
+#app canvas, #app img {
+  image-rendering: pixelated;
+  image-rendering: crisp-edges;
+}