Prepare Web API section for Markdown conversion (#2464)

* Remove summary classes and ids

* Remove unecessary hidden

* Remove useless span filled with useless attributes / ids

* Remove useless font

* Remove notranslate

* Remove id in other elements than headings

* Remove name attributes

* Remove <pre><code> for JS w/ language-js class

* Remove <pre><code> for HTML w/ language-html class

* Remove <pre><code> for other lang w/ language-* class

* Rm highlighted line in code samples

* fix links, internal, external, absolute URLs

* missing file from last commit

* Fix styles errors apart from table + some classes

* Fix notes and warnings (+ some other :x)

* fix typo during merge which broke a doc

* aand forgot a conflict

* fix remaining classes of errors except dls and images

* Fix dls

* Fix images (deki/mozillademos) and remaining style issues

* Remove script tag from svg file

* Remove script tag from svg fileS

* Compress SVG files for CI

1 files changed, 4 insertions, 4 deletions

diff --git a/files/fr/web/api/batterymanager/level/index.html b/files/fr/web/api/batterymanager/level/index.html
index 65b1145473..30fb39da87 100644
--- a/files/fr/web/api/batterymanager/level/index.html
+++ b/files/fr/web/api/batterymanager/level/index.html
@@ -17,16 +17,16 @@ translation_of: Web/API/BatteryManager/level
 
 <p>La valeur <code>1.0</code> est aussi retournée si le système n'est pas capable de déterminer son niveau de charge ou si le système n'est pas alimenté par une batterie.</p>
 
-<h2 id="Example" name="Example">Exemple</h2>
+<h2 id="Example">Exemple</h2>
 
 <h3 id="Code_HTML">Code HTML</h3>
 
-<pre class="brush: html  language-html">&lt;div id="level"&gt;(niveau de batterie inconnu)&lt;/div&gt;<code class="language-html">
-</code></pre>
+<pre class="brush: html">&lt;div id="level"&gt;(niveau de batterie inconnu)&lt;/div&gt;
+</pre>
 
 <h3 id="Code_JavaScript">Code JavaScript</h3>
 
-<pre class="brush: js;  highlight:[3]">navigator.getBattery().then(function(battery) {
+<pre class="brush: js;">navigator.getBattery().then(function(battery) {
 
     var level = battery.level;