diff --git a/hack20 b/hack20
new file mode 100644
index 0000000..10e9a23
--- /dev/null
+++ b/hack20
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+<style>
+p {
+  color: red;
+  /* This is a single-line comment */
+  text-align: center;
+} 
+
+/* This is
+a multi-line
+comment */
+</style>
+</head>
+<body>
+
+<p>Hello World!</p>
+<p>This paragraph is styled with CSS.</p>
+<p>CSS comments are not shown in the output.</p>
+
+</body>
+</html>
