Citation de FDP-Deter
Doit te manquer quelques connaissances
Il est là ton formulaire de ddb:
<div id="ddb-form-content">
<h3>Signaler un contenu</h3><br/>
<form method="get" action="https://avenoel.org/ddb">

<center>
<select style="width: 200px;" class="form-control" id="ddb-motif" name="motif">
<option value="0">Pornographie / nudité</option>
<option value="1">Incitation à la haine</option>
<option value="2">Pédopornographie</option>
<option value="3">Mise en danger de personnes</option>
<option value="4">Menaces, diffamation</option>
<option value="5">Droits d'auteurs</option>
<option value="6">Apologie comportements illégaux</option>
<option value="7">Données personelles</option>
<option value="8">Spam</option>
<option value="9">Message inopportun</option>
<option value="10">Publicité</option>
</select>
</center><br/>
<input type="text" id="ddb-target" name="ddbtarget" />
<center><span style="padding-top: 15px; padding-bottom: 15px;"><div class="g-recaptcha" data-sitekey="6LdgnQgUAAAAAI4877V6vwA4E16PIVoKDiZ8RRsX"></div>
<noscript>
<div>
<div style="width: 302px; height: 422px; position: relative;">
<div style="width: 302px; height: 422px; position: absolute;">
<iframe src="https://www.google.com/re[...]wA4E16PIVoKDiZ8RRsX"

frameborder="0" scrolling="no"
style="width: 302px; height:422px; border-style: none;">
</iframe>
</div>
</div>
<div style="width: 300px; height: 60px; border-style: none;
bottom: 12px; left: 25px; margin: 0px; padding: 0px; right: 25px;
background: #f9f9f9; border: 1px solid #c1c1c1; border-radius: 3px;">
<textarea id="g-recaptcha-response" name="g-recaptcha-response"
class="g-recaptcha-response"
style="width: 250px; height: 40px; border: 1px solid #c1c1c1;
margin: 10px 25px; padding: 0px; resize: none;" >
</textarea>
</div>

Je le vois mais :
<script>
var signal_box = document.querySelector("#ddb-form");
var boutons_ddb = document.querySelectorAll('.ddb-bouton');
document.querySelector('#ddb-cancel').addEventListener('click', function() {
signal_box.style.display = "none";
});

Array.from(boutons_ddb).forEach(link => {
link.addEventListener('click', function(event) {
signal_box.style.display = "block";
document.querySelector('#ddb-target').value=event.target.dataset.msgid;
});
});
</script>

signal_box.style.display = "none";
Ne fonctionne pas quand je clique sur le DDB.