bonsoir a tous je voudrai savoir comment créer une barre vertical voici une capture je voudrai l'inserer sur les categories bord droit tout le long:

et voici mes codes:
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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<h3>categories</h3>
 
                           <!-- debut categories -->
 
<h4>consoles-jeux</h4>
 
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">consoles-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">xbox-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html"> playstation-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">nintendo-</a></span>
<br><span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">autres support-</a></span></br>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">accessoires-</a></span>
 
<h4>Dvd-blu-ray</h4>
 
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">dvd-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">blu-ray-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">musical-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">drame/biopic-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">thriller</a></span>
<br><span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">action-</a></span></br>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">comédie-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">arts martiaux-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">policier</a></span>
<br><span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">fantastique/horreur-</a></span></br>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">animé-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">documentaires</a></span>
<br><span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">sciences fiction.</a></span></br>
 
 
<h4>Audio/vidéo</h4>
 
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">lecteur dvd/blu-ray-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">home cinéma-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">sono-dj</a></span>
<br><span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">ampli-</a></span></br>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">matériel.</a></span>
 
<h4>Musique</h4>
 
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">cd-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">dvd musical-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">vynile-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">instruments</a></span>
<br><span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">materiel</a></span></br>
 
<h4>informatique</h4>
 
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">pc-</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">imprimante--</a></span>
<span class="mon_span"><a href="file:///C:/Users/Cid/Documents/transac/transac2.html">materiel</a></span>
 
</span></span>
</div>
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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h4{
background-color:darkturquoise;
width:24%;
border-right:1px solid yellow;}
merci a tous de m'aider