--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/presentation/themes/blank/screen.css.less	Wed Jul 01 19:06:07 2015 +0900
@@ -0,0 +1,31 @@
+/*********************************
+ * CSS @media screen (not projection or print)
+ *
+ * 1) projection -> slideshow mode (display one slide at-a-time; hide all others)
+ * 2) screen     -> outline mode (display all slides-at-once on screen) 
+ * 3) print      -> print (and print preview)
+ *
+ * toggle between projection/screen (that is, slideshow/outline) mode using t-key
+ */
+
+//////////////////////////////////////
+// note: this is a less extendend css script, to learn more about less; see lesscss.org) 
+
+.slide
+{
+  display: block !important;
+  margin: 1.5em 0 0;
+  border-top: 1px solid #888;
+
+  h1 { border-bottom: 1px solid #AAA; }
+  
+  
+  &:first-child {
+    margin: 0;
+    border: none;
+    
+    h1 {
+      border: none;
+      padding-top: 1.5em; }
+  }
+}
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