move reset.css out of reveal.css to make it optional #1952 #2248

css/reset.css

+/* http://meyerweb.com/eric/tools/css/reset/
+   v4.0 | 20180602
+   License: none (public domain)
+*/
+
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+main, menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  font-size: 100%;
+  font: inherit;
+  vertical-align: baseline;
+}
+/* HTML5 display-role reset for older browsers */
+article, aside, details, figcaption, figure,
+footer, header, hgroup, main, menu, nav, section {
+  display: block;
+}
\ No newline at end of file

css/reveal.css

@@ -5,33 +5,6 @@
  *
  * Copyright (C) 2018 Hakim El Hattab, http://hakim.se
  */
-/*********************************************
- * RESET STYLES
- *********************************************/
-html, body, .reveal div, .reveal span, .reveal applet, .reveal object, .reveal iframe,
-.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6, .reveal p, .reveal blockquote, .reveal pre,
-.reveal a, .reveal abbr, .reveal acronym, .reveal address, .reveal big, .reveal cite, .reveal code,
-.reveal del, .reveal dfn, .reveal em, .reveal img, .reveal ins, .reveal kbd, .reveal q, .reveal s, .reveal samp,
-.reveal small, .reveal strike, .reveal strong, .reveal sub, .reveal sup, .reveal tt, .reveal var,
-.reveal b, .reveal u, .reveal center,
-.reveal dl, .reveal dt, .reveal dd, .reveal ol, .reveal ul, .reveal li,
-.reveal fieldset, .reveal form, .reveal label, .reveal legend,
-.reveal table, .reveal caption, .reveal tbody, .reveal tfoot, .reveal thead, .reveal tr, .reveal th, .reveal td,
-.reveal article, .reveal aside, .reveal canvas, .reveal details, .reveal embed,
-.reveal figure, .reveal figcaption, .reveal footer, .reveal header, .reveal hgroup,
-.reveal menu, .reveal nav, .reveal output, .reveal ruby, .reveal section, .reveal summary,
-.reveal time, .reveal mark, .reveal audio, .reveal video {
-  margin: 0;
-  padding: 0;
-  border: 0;
-  font-size: 100%;
-  font: inherit;
-  vertical-align: baseline; }
-
-.reveal article, .reveal aside, .reveal details, .reveal figcaption, .reveal figure,
-.reveal footer, .reveal header, .reveal hgroup, .reveal menu, .reveal nav, .reveal section {
-  display: block; }
-
 /*********************************************
  * GLOBAL STYLES
  *********************************************/
@@ -44,6 +17,7 @@ body {
 body {
   position: relative;
   line-height: 1;
+  margin: 0;
   background-color: #fff;
   color: #000; }
 

css/reveal.scss

@@ -7,37 +7,6 @@
  */
 
 
-/*********************************************
- * RESET STYLES
- *********************************************/
-
-html, body, .reveal div, .reveal span, .reveal applet, .reveal object, .reveal iframe,
-.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6, .reveal p, .reveal blockquote, .reveal pre,
-.reveal a, .reveal abbr, .reveal acronym, .reveal address, .reveal big, .reveal cite, .reveal code,
-.reveal del, .reveal dfn, .reveal em, .reveal img, .reveal ins, .reveal kbd, .reveal q, .reveal s, .reveal samp,
-.reveal small, .reveal strike, .reveal strong, .reveal sub, .reveal sup, .reveal tt, .reveal var,
-.reveal b, .reveal u, .reveal center,
-.reveal dl, .reveal dt, .reveal dd, .reveal ol, .reveal ul, .reveal li,
-.reveal fieldset, .reveal form, .reveal label, .reveal legend,
-.reveal table, .reveal caption, .reveal tbody, .reveal tfoot, .reveal thead, .reveal tr, .reveal th, .reveal td,
-.reveal article, .reveal aside, .reveal canvas, .reveal details, .reveal embed,
-.reveal figure, .reveal figcaption, .reveal footer, .reveal header, .reveal hgroup,
-.reveal menu, .reveal nav, .reveal output, .reveal ruby, .reveal section, .reveal summary,
-.reveal time, .reveal mark, .reveal audio, .reveal video {
-	margin: 0;
-	padding: 0;
-	border: 0;
-	font-size: 100%;
-	font: inherit;
-	vertical-align: baseline;
-}
-
-.reveal article, .reveal aside, .reveal details, .reveal figcaption, .reveal figure,
-.reveal footer, .reveal header, .reveal hgroup, .reveal menu, .reveal nav, .reveal section {
-	display: block;
-}
-
-
 /*********************************************
  * GLOBAL STYLES
  *********************************************/
@@ -52,6 +21,7 @@ body {
 body {
 	position: relative;
 	line-height: 1;
+	margin: 0;
 
 	background-color: #fff;
 	color: #000;

demo.html

@@ -14,6 +14,7 @@
 
 		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
 
+		<link rel="stylesheet" href="css/reset.css">
 		<link rel="stylesheet" href="css/reveal.css">
 		<link rel="stylesheet" href="css/theme/black.css" id="theme">