diff --git a/_includes/head.html b/_includes/head.html
index b9c9380..f66df88 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -19,4 +19,4 @@
 	link.type = 'text/css';
 	link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'node_modules/reveal.js/css/print/paper.css';
 	document.getElementsByTagName( 'head' )[0].appendChild( link );
-</script>
\ No newline at end of file
+</script>/**只是一次尝试**/
diff --git a/learning b/learning
new file mode 100644
index 0000000..1746b99
--- /dev/null
+++ b/learning
@@ -0,0 +1,6 @@
+---
+layout: slide
+title: "Welcome to our second slide!"
+---
+Your text
+Use the left arrow to go back!