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, 1 insertions, 3 deletions

diff --git a/files/fr/web/css/css_animations/tips/index.html b/files/fr/web/css/css_animations/tips/index.html
index adb261195e..011e1c6e3a 100644
--- a/files/fr/web/css/css_animations/tips/index.html
+++ b/files/fr/web/css/css_animations/tips/index.html
@@ -22,8 +22,7 @@ original_slug: Web/CSS/Animations_CSS/Conseils
 
 <p>Tout d'abord, on définit l'animation avec des règles CSS (certaines règles superflues sont masquées ici à des fins de concision).</p>
 
-<div class="hidden">
-<pre class="brush: css">.runButton {
+<pre class="brush: css hidden">.runButton {
   cursor: pointer;
   width: 300px;
   border: 1px solid black;
@@ -36,7 +35,6 @@ original_slug: Web/CSS/Animations_CSS/Conseils
   background-color: darkgreen;
   font: 14px "Open Sans", "Arial", sans-serif;
 }</pre>
-</div>
 
 <pre class="brush: css">@keyframes colorchange {
   0% { background: yellow }