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

3 files changed, 8 insertions, 8 deletions

diff --git a/files/fr/web/api/htmlcontentelement/getdistributednodes/index.html b/files/fr/web/api/htmlcontentelement/getdistributednodes/index.html
index 0b80a65c12..282b4a2933 100644
--- a/files/fr/web/api/htmlcontentelement/getdistributednodes/index.html
+++ b/files/fr/web/api/htmlcontentelement/getdistributednodes/index.html
@@ -17,14 +17,14 @@ translation_of: Web/API/HTMLContentElement/getDistributedNodes
 <pre class="syntaxbox">var <em>nodeList</em> = <em>object</em>.getDistributedNodes()
 </pre>
 
-<h2 id="Specifications" name="Specifications">Exemple</h2>
+<h2 id="Specifications">Exemple</h2>
 
 <pre class="brush: js">// Récupère les éléments
 var nodes = myContentObject.getDistributedNodes();</pre>
 
-<h2 id="Specifications" name="Specifications">Spécifications</h2>
+<h2 id="Specifications">Spécifications</h2>
 
-<table class="spec-table standard-table">
+<table class="standard-table">
  <tbody>
   <tr>
    <th scope="col">Spécification</th>
diff --git a/files/fr/web/api/htmlcontentelement/index.html b/files/fr/web/api/htmlcontentelement/index.html
index ef454595d1..9746995c4a 100644
--- a/files/fr/web/api/htmlcontentelement/index.html
+++ b/files/fr/web/api/htmlcontentelement/index.html
@@ -13,7 +13,7 @@ translation_of: Web/API/HTMLContentElement
 
 <p>L'interface <code><strong>HTMLContentElement</strong></code> represente un élément HTML {{HTMLElement("content")}}, utilisé dans le <a href="/en-US/docs/Web/Web_Components/Shadow_DOM">Shadow DOM</a>. </p>
 
-<h2 id="Properties" name="Properties">Propriétés</h2>
+<h2 id="Properties">Propriétés</h2>
 
 <p><em>Cette interface hérite des propriétés de {{domxref("HTMLElement")}}.</em></p>
 
@@ -33,7 +33,7 @@ translation_of: Web/API/HTMLContentElement
 
 <h2 id="Spécifications">Spécifications</h2>
 
-<table class="spec-table standard-table">
+<table class="standard-table">
  <tbody>
   <tr>
    <th scope="col">Spécification</th>
diff --git a/files/fr/web/api/htmlcontentelement/select/index.html b/files/fr/web/api/htmlcontentelement/select/index.html
index bb6160b8db..f5b8eda778 100644
--- a/files/fr/web/api/htmlcontentelement/select/index.html
+++ b/files/fr/web/api/htmlcontentelement/select/index.html
@@ -18,14 +18,14 @@ translation_of: Web/API/HTMLContentElement/select
 <pre class="syntaxbox"><em>object</em>.select = "<em>CSSselector</em> <em>CSSselector</em> ...";
 </pre>
 
-<h2 id="Specifications" name="Specifications">Exemple</h2>
+<h2 id="Specifications">Exemple</h2>
 
 <pre class="brush: js">// Choisi les éléments &lt;h1&gt; et les elements avec la class "error"
 myContentObject.select = "h1 .error";</pre>
 
-<h2 id="Specifications" name="Specifications">Spécifications</h2>
+<h2 id="Specifications">Spécifications</h2>
 
-<table class="spec-table standard-table">
+<table class="standard-table">
  <tbody>
   <tr>
    <th scope="col">Specification</th>