diff --git a/style.css b/style.css
index 33fd056..25b64ea 100644
--- a/style.css
+++ b/style.css
@@ -439,13 +439,13 @@ body.fullscreen-clock .clock-label {
 
 .marker {
   position: absolute;
-  width: 2em;
-  height: 2em;
+  width: calc(var(--clock-size) * 0.13);
+  height: calc(var(--clock-size) * 0.13);
   text-align: center;
-  line-height: 2em;
+  line-height: calc(var(--clock-size) * 0.13);
   /* Use a futuristic font for the clock markers */
   font-family: 'Orbitron', 'Trebuchet MS', 'Lucida Sans', Arial, sans-serif;
-  font-size: 1.2em;
+  font-size: calc(var(--clock-size) * 0.08);
   font-weight: 600;
   color: #00ffff;
   background: none;