diff --git a/Chapter 10/Exercise 10.4 b/Chapter 10/Exercise 10.4
new file mode 100644
index 0000000..04c2483
--- /dev/null
+++ b/Chapter 10/Exercise 10.4	
@@ -0,0 +1,15 @@
+<!doctype html>
+<html>
+<head>
+    <title>Canvas HTML5</title>
+</head>
+<body>
+    <body>
+        <h1 class="ele">Hello World</h1>
+        <div class="ele">Hello World 1</div>
+        <div class="ele">Hello World 3</div>
+    <script>
+        const myEles = document.getElementsByClassName("ele");
+        console.log(myEles[0]);
+    </script>
+</html>
