diff --git a/_project_starter_/expanding_cards/script.js b/_project_starter_/expanding_cards/script.js
index 8b13789..30f929e 100644
--- a/_project_starter_/expanding_cards/script.js
+++ b/_project_starter_/expanding_cards/script.js
@@ -1 +1,15 @@
 
+const panels = document.querySelectorAll('.panel')
+
+panels.forEach((panel) => {
+	panel.addEventListener('click', () => {
+		removeActiveClasses();
+		 panel.classList.add("active");
+	})
+})
+
+function removeActiveClasses() {
+	panels.forEach(panel => {
+		panel.classList.remove("active");
+	})
+}
\ No newline at end of file
diff --git a/_project_starter_/expanding_cards/style_copy0.css b/_project_starter_/expanding_cards/style_copy0.css
deleted file mode 100644
index ec80c4b..0000000
--- a/_project_starter_/expanding_cards/style_copy0.css
+++ /dev/null
@@ -1,16 +0,0 @@
-@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
-
-* {
-  box-sizing: border-box;
-}
-
-body {
-  font-family: 'Roboto', sans-serif;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  height: 100vh;
-  overflow: hidden;
-  margin: 0;
-}