From 39a000d658162202953c2bb16104d6c1d4246aac Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Tue, 18 Jun 2019 19:46:06 +0200
Subject: [PATCH] separated color declarations for easyer syling

---
 clickslide.css | 83 +++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 65 insertions(+), 18 deletions(-)

diff --git a/clickslide.css b/clickslide.css
index 084bf68..2e76754 100644
--- a/clickslide.css
+++ b/clickslide.css
@@ -1,3 +1,44 @@
+/* === Colors === */
+
+footer,
+body a.toplevel:before,
+body span.count,
+div.slide:target:after,
+div.slide:target + a, div.slide:target + a + a,
+:target + a:before, :target + a + a:before
+{ color: #888; }
+
+body
+{ background-color: #AAA;
+  background-image: repeating-linear-gradient( to bottom right, #AAA, #999 8px);
+}
+
+div.slide
+{ background-color: #FFF;
+  background-image: repeating-linear-gradient( #FFF, #EEE 4px);
+}
+
+div.slide:target:after,
+footer:before, body:after
+{ background-color: #EEE;
+  background-image: repeating-linear-gradient(#EEE, #DDD 8px);
+}
+
+div.slide h1, div.slide h2
+{ background-color: #EEE;
+  background-image: repeating-linear-gradient(#EEE, #DDD 8px);
+}
+
+div.slide pre, div.slide code
+{ background-color: #DDD;
+  background-image: repeating-linear-gradient(#CCC, #DDD 4px);
+}
+
+div.slide:after  /* slide number on overview screen */
+{ color: #AAA; }
+
+/* === Overall Layout === */
+
 * {
   box-sizing: border-box;
   margin: 0; padding: 0;
@@ -20,7 +61,7 @@
 body {
   font-family: sans-serif;
   padding: 2em 1em 6em 1em;
-  background-color: #555;
+  #background-color: #555;
   text-align: center;
   overflow-x: hidden;
 }
@@ -33,9 +74,9 @@ body:after {
   position: fixed;
   bottom: 0; left: 0;
   width: 100%;
-  background-color: #EEE;
   height: 1.25em;
   content: ' ';
+  #background: #EEE repeating-linear-gradient(#EEE, #DDD 8px);
 }
 
 a.previous, a.next ,a.toplevel {
@@ -49,16 +90,17 @@ footer {
   font-size: .75em;
   padding: .5em 4em .5em 12em;
   text-align: center;
-  color: #888;
+  #color: #888;
   z-index: 4;
+  /* footer must not have background, so slide number is not covered */
 }
-footer:before {
+footer:before {  /* fake background in case footer spans multiple lines */
   content: ' ';
   position: absolute;
   top: 0; left: 0;
   bottom: 1.5em;
   width: 100%;
-  background-color: #EEE;
+  #background: #EEE repeating-linear-gradient(#EEE, #DDD 8px);
   z-index: -1;
 }
 
@@ -68,11 +110,11 @@ body a.toplevel {
   width: 2ex; overflow: hidden;
   font-size: .875em;
   padding-bottom: .25em;
-  color: #EEE;
+  color: transparent;
   z-index: 5;
 }
 body a.toplevel:before {
-  color: #888;
+  #color: #888;
   content: '\2196';
 }
 
@@ -81,7 +123,7 @@ body span.count {
   bottom: 0; left: 6.25em;
   font-size: .875em;
   padding-bottom: .125em;
-  color: #888;
+  #color: #888;
   z-index: 5;
 }
 
@@ -108,7 +150,7 @@ div.slide:after {  /* slide number */
   text-align: left;
   content: attr(count);
   padding-left: .125em;
-  color: #DDD;
+  #color: #DDD;
 }
 
 div.slide + a { display: none; }
@@ -117,7 +159,7 @@ a.nextslide {
   position: relative;
   vertical-align: top;
   width: 48em; line-height: 30em;
-  color: rgba(0, 0, 0, 0);
+  color: transparent;
   z-index: 2;
 }
 #div.slide:nth-of-type(1) { margin-right: .5em; }
@@ -125,7 +167,7 @@ a.nextslide {
 /* ==== Slide Appearance ==== */
 
 div.slide {
-  background: #FFF no-repeat center;
+  #background: #FFF no-repeat center;
   text-align: center;
   line-height: 1.5em;
 }
@@ -145,12 +187,12 @@ div.slide > h2:first-child + :last-child {
 
 div.slide h1, div.slide h2 {
   display: block;
-  background-color: #EEE;
   text-align: center;
   font-size: 1.5em;
   margin-top: 0;
   margin-bottom: 1em;
   width: 100%; max-width: 100%;
+  #background: #EEE repeating-linear-gradient(#EEE, #DDD 8px);
 }
 
 div.slide h1,
@@ -187,13 +229,18 @@ div.slide > ol {
   margin: .25em auto;
 }
 
+div.slide pre, div.slide code {
+  #background-color: rgba(224,224,224,128);
+  font-family: monospace;
+}
 div.slide pre {
-  background-color: rgba(192,192,192,128);
   padding: 1ex;
   text-align: left;
-  font-family: monospace;
   overflow: hidden;
 }
+div.slide code {
+  padding: 0 .5em;
+}
 
 /* ==== Slide Display ==== */
 
@@ -217,8 +264,8 @@ div.slide:target:after {
   text-align: left;
   content: attr(count) " /";
   padding-left: 4em;
-  background-color: #EEE;
-  color: #888;
+  #color: #888;
+  #background: #EEE repeating-linear-gradient(#EEE, #DDD 8px);
 }
 
 /* back and forth link buttons */
@@ -228,13 +275,13 @@ div.slide:target + a + a {
   display: block;
   font-size: inherit;
   line-height: 1em;
-  color: #888;
+  #color: #888;
 }
 :target + a:before, :target + a + a:before {
   display: block;
   position: fixed;
   bottom: 0;
-  color: #888;
+  #color: #888;
   padding: 0 1em .25em 1em;
   z-index: 4;
 }
-- 
2.39.2