Prepare CSS section for Markdown conversion (#2307)

* Removes summary / seoSummary classes

* Remove div class=hidden and some notranslate

* Remove hidden paragraphs for live sample

* Remove hidden paragraphs for live sample - take 2

* Remove other hidden div and p - updated w/ en-US when necessary

* Remove ids

* Remove notranslate class

* Fix typo which broke build

* remove div class='index'

* remove useless <span style=...>

* remove non typographical sups

* remove non typographical subs

* remove blockindicator and fix some div.note

* fix build :/

* remove useless classes

* fix build - again :x

* fix unhandled elements 1/N + embedlivesample build fail

* fix div.warning

* Fix fixable flaws - hoping to reduce error conversion

* Remove unecessary images (same as en-US)

* fix div notes

* fix warnings

* fix some dl handling

* fix dls

* Fix a bunch of conversion errors

* rm unhandled figures

* Fix other set of issues and revamp easing-function page

* Fix some one-offs conversion errors (incl. deki files)

* fix the rest of one-off conversion issues

* Fix last dl standing

1 files changed, 2 insertions, 4 deletions

diff --git a/files/fr/web/css/background-attachment/index.html b/files/fr/web/css/background-attachment/index.html
index 549d4d3cc6..a047e44575 100644
--- a/files/fr/web/css/background-attachment/index.html
+++ b/files/fr/web/css/background-attachment/index.html
@@ -13,8 +13,6 @@ translation_of: Web/CSS/background-attachment
 
 <div>{{EmbedInteractiveExample("pages/css/background-attachment.html")}}</div>
 
-<p class="hidden">Le code source de cet exemple interactif est disponible dans un dépôt GitHub. Si vous souhaitez contribuez à ces exemples, n'hésitez pas à cloner <a href="https://github.com/mdn/interactive-examples">https://github.com/mdn/interactive-examples</a> et à envoyer une <em>pull request</em> !</p>
-
 <h2 id="Syntaxe">Syntaxe</h2>
 
 <pre class="brush: css no-line-numbers">/* Valeurs avec un mot-clé */
@@ -51,7 +49,7 @@ background-attachment: unset;
 
 <h4 id="CSS">CSS</h4>
 
-<pre class="brush:css; highlight:[3];">p {
+<pre class="brush:css">p {
   background-image: url("https://mdn.mozillademos.org/files/12057/starsolid.gif");
   background-attachment: fixed;
 }
@@ -76,7 +74,7 @@ background-attachment: unset;
 
 <h4 id="CSS_2">CSS</h4>
 
-<pre class="brush:css; highlight:[3];">p {
+<pre class="brush:css">p {
   background-image: url("https://mdn.mozillademos.org/files/12057/starsolid.gif"), url("https://mdn.mozillademos.org/files/12059/startransparent.gif");
   background-attachment: fixed, scroll;
   background-repeat: no-repeat, repeat-y;