파일내용 수정

@@ -18,5 +18,12 @@
     <p>내용 2</p>
     <!-- target: 새 탭을 여는것-->
     <p><a href = "https://www.google.com/webhp?hl=ko&sa=X&ved=0ahUKEwjzxPrzkOrwAhWsF6YKHTq_CFwQPAgI" target = "_blank" title = "하이퍼링크 설명"> Go to google</a></p>
+    <input type="button" value="BUTTON" onclick="alert('alert box')">
+    <input type="text" onchange="alert('changed')">
+    <br>
+    <br>    
+    <script>
+        document.write(1+2+3);
+    </script>
 </body>
 </html>
\ No newline at end of file