diff --git a/index.html b/index.html
index cc9143b..41d770a 100644
--- a/index.html
+++ b/index.html
@@ -18,6 +18,7 @@
             <button id="shade">Shade</button>
             <button id="tint">Tint</button>
             <button id="opacity">Opacity</button>
+            <button id="trans">Transparent</button>
             <button id="erase">Erase</button>
 
             <div class="slider">
@@ -34,4 +35,4 @@
 
     <script src="script.js"></script>
 </body>
-</html>
\ No newline at end of file
+</html>