diff --git a/clock.js b/clock.js
index 4818a09..b0ae1ba 100644
--- a/clock.js
+++ b/clock.js
@@ -43,8 +43,8 @@
     // Position markers based on the current clock size
     // Move markers slightly inward and tweak the center position so
     // the ring of ticks lines up perfectly with the border.
-    const borderOffset = clock.offsetWidth > 300 ? 35 : 25;
-    const centerAdjust = { x: -1, y: -1 };
+    const borderOffset = clock.offsetWidth > 300 ? 45 : 26;
+    const centerAdjust = { x: -3, y: -2 };
     const markerRadius = clock.offsetWidth / 2 - borderOffset;
     markers.forEach((m, i) => {
       const angle = (i / 16) * 2 * Math.PI;