[epiphany] Add padding to private browsing page

[Michael Catanzaro <mcatanzaro src gnome org>]

commit b2b957abe4539a9f52b98627b8041b27a5a03d61
Author: Jan-Michael Brummer <jan brummer tabos org>
Date:   Sun Jan 19 14:04:23 2020 +0100

    Add padding to private browsing page
    
    Use the same padding as for all the other error pages
    
    Fixes: https://gitlab.gnome.org/GNOME/epiphany/issues/1056

 src/resources/about.css | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/resources/about.css b/src/resources/about.css
index 9b2eeeba9..187ae1b19 100644
--- a/src/resources/about.css
+++ b/src/resources/about.css
@@ -227,6 +227,8 @@ html.epiphany-html {
     justify-content: center;
     max-width:40em;
     margin: 30px auto 60px;
+    padding-left: 12px;
+    padding-right: 12px;
     text-align:block;
     line-height: 1.5;
 }