diff --git a/src/scripts/main.js b/src/scripts/main.js
index ad9a93a7..141b2866 100644
--- a/src/scripts/main.js
+++ b/src/scripts/main.js
@@ -1 +1,16 @@
 'use strict';
+
+const thumbnails = document.querySelector('.gallery__list');
+const largeImage = document.querySelector('.gallery__large-img');
+
+thumbnails.addEventListener('click', (evt) => {
+  const currentThumbnail = evt.target.closest('.list-item__link');
+
+  if (!currentThumbnail) {
+    return;
+  }
+
+  evt.preventDefault();
+
+  largeImage.src = currentThumbnail.href;
+});