[epiphany] Reader mode: Use unitless value for line-height in CSS

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 06938123dcb62c8d10f24dc5d54d8bea78265ad6
Author: Adrian Perez de Castro <aperez igalia com>
Date:   Wed Aug 8 23:38:36 2018 +0300

    Reader mode: Use unitless value for line-height in CSS
    
    This avoids the line-height being wrong for elements which inherit the
    line-height but have a different font size. This makes it possible to
    remove the line-height attributes for the different heading elements.

 src/resources/reader.css | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
---
diff --git a/src/resources/reader.css b/src/resources/reader.css
index 4edf746e6..ce087b582 100644
--- a/src/resources/reader.css
+++ b/src/resources/reader.css
@@ -182,7 +182,7 @@ body.serif {
 }
 
 body {
-  line-height: 165%;
+  line-height: 1.45;
   text-rendering: optimizeLegibility;
 }
 
@@ -245,17 +245,14 @@ picture img {
 
 h1 {
   font-size: 1.6em;
-  line-height: 1.25em;
 }
 
 h2 {
   font-size: 1.2em;
-  line-height: 1.51em;
 }
 
 h3 {
   font-size: 1em;
-  line-height: 1.66em;
 }
 
 a {
@@ -298,7 +295,6 @@ figure img {
 .wp-caption-text,
 figcaption {
   font-size: 0.9em;
-  line-height: 1.48em;
   font-style: italic;
 }