ebook: remove the ugly grey background calibre ebook-convert adds by default

Author: entorb

scripts/ebook/html.css

@@ -1,20 +1,20 @@
 /* start html.css */
 
 p {
-	text-align: justify;
-	line-height: 1.25;
+  text-align: justify;
+  line-height: 1.25;
 }
 
 em {
-	font-style: italic;
+  font-style: italic;
 }
 
 em em {
-	font-style: normal;
+  font-style: normal;
 }
 
 em em em {
-	font-style: italic;
+  font-style: italic;
 }
 
 /* V1: using custom fonts */
@@ -80,45 +80,41 @@ span.writtenNote {
 }
 */
 
-
 /* V2: no custom font to increase compatibility (modi seems not to support fonts, and char ß is missing in some of the fonts */
 
-
-
 span.lettrine {
-	font-size: 150%;
+  font-size: 150%;
 }
 
 span.parsel {
-	font-style: italic;
+  font-style: italic;
 }
 
 div.parsel {
-	font-style: italic;
+  font-style: italic;
 }
 
 div.writtenNote {
-	font-style: italic;
-	margin-left: 1em;
+  font-style: italic;
+  margin-left: 1em;
 }
 
 span.writtenNote {
-	font-style: italic;
-	margin-left: 1em;
+  font-style: italic;
+  margin-left: 1em;
 }
 
 div.McGonagallWhiteBoard p {
-	color: #cc3333;
-	text-align: center;
-	text-transform: uppercase;
-	text-decoration: underline;
-	text-decoration-color: #3333cc;
-	/* text-decoration-thickness: 1px; */
+  color: #cc3333;
+  text-align: center;
+  text-transform: uppercase;
+  text-decoration: underline;
+  text-decoration-color: #3333cc;
+  /* text-decoration-thickness: 1px; */
 }
 
 span.headline {
-	font-variant: small-caps;
+  font-variant: small-caps;
 }
 
-
 /* end html.css */

scripts/ebook/step_7.sh

@@ -17,7 +17,8 @@ target_file="hpmor.epub"
 
 echo ==== 7.1b calibre: html -\> epub ====
 # calibre is a bit better in ebook generation than pandoc and the result can be converted to mobi and docx
-ebook-convert $source_file $target_file --language en-US --no-default-epub-cover --cover "tmp/title.jpg" --book-producer "Torben Menke" --level1-toc "//h:h1" --level2-toc "//h:h2" --level3-toc "//h:h3"
+ebook-convert $source_file $target_file --language en-US --no-default-epub-cover --cover "tmp/title.jpg" --book-producer "Torben Menke" --level1-toc "//h:h1" --level2-toc "//h:h2" --level3-toc "//h:h3" --filter-css "background-color"
+#  --filter-css "background-color" is needed to remove the ugly gray background color calibre adds by default.
 
 source_file="hpmor.epub"
 echo ==== 7.2 calibre: epub -\> mobi ====