--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/slide/s6/themes/screen.css	Sat Feb 15 21:22:43 2020 +0900
@@ -0,0 +1,25 @@
+/*********************************
+ * 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
+ */
+.slide {
+  display: block !important;
+  margin: 1.5em 0 0;
+  border-top: 1px solid #888;
+}
+.slide h1 {
+  border-bottom: 1px solid #AAA;
+}
+.slide:first-child {
+  margin: 0;
+  border: none;
+}
+.slide:first-child h1 {
+  border: none;
+  padding-top: 1.5em;
+}