diff --git a/index.html b/index.html
index bbce3ee..f5b6901 100644
--- a/index.html
+++ b/index.html
@@ -25,10 +25,10 @@
       <div id="player-strength"></div>
       <div id="player-status"></div>
       <div id="pile-counts">
-        <button id="draw-pile-btn">draw: <span id="draw-count">0</span></button>
-        <button id="discard-pile-btn">discard: <span id="discard-count">0</span></button>
+        <button type="button" id="draw-pile-btn">draw: <span id="draw-count">0</span></button>
+        <button type="button" id="discard-pile-btn">discard: <span id="discard-count">0</span></button>
       </div>
-      <button id="end-turn-btn">end turn</button>
+      <button type="button" id="end-turn-btn">end turn</button>
     </section>
 
     <section id="hand"></section>
diff --git a/src/serve.js b/src/serve.js
index 8e61260..2a0a63c 100644
--- a/src/serve.js
+++ b/src/serve.js
@@ -2,7 +2,7 @@ const server = Bun.serve({
   port: 3000,
   async fetch(req) {
     const url = new URL(req.url);
-    let path = url.pathname === "/" ? "/index.html" : url.pathname;
+    const path = url.pathname === "/" ? "/index.html" : url.pathname;
     const file = Bun.file(`.${path}`);
     if (await file.exists()) {
       return new Response(file);
diff --git a/style.css b/style.css
index 9d56aa8..03b7fd5 100644
--- a/style.css
+++ b/style.css
@@ -1,4 +1,8 @@
-* { margin: 0; padding: 0; box-sizing: border-box; }
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
 
 #game {
   display: flex;
@@ -50,7 +54,7 @@
 #overlay {
   position: fixed;
   inset: 0;
-  background: rgba(0,0,0,0.7);
+  background: rgba(0, 0, 0, 0.7);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -58,4 +62,6 @@
   font-size: 2rem;
 }
 
-#overlay[hidden] { display: none; }
+#overlay[hidden] {
+  display: none;
+}