diff --git a/app.js b/app.js
index 363e26e..de7a46d 100644
--- a/app.js
+++ b/app.js
@@ -812,7 +812,7 @@
         grid.innerHTML = "";
         grid.classList.toggle('has-stars', false);
         if (!rows || !cols) return;
-        grid.style.gridTemplateColumns = `repeat(${rows}, 1fr)`; // flip to spread horizontally first
+        grid.style.gridTemplateColumns = `repeat(${cols}, 1fr)`; // layout vertically taller than wide
         for (let i = 0; i < (rows * cols); i++) {
             const dot = document.createElement('div'); dot.className = 'star-dot'; grid.appendChild(dot);
         }