Exemple de code de la propriété CSS list-style.

<style>
.list-style-0{ list-style : inside lower-alpha } 
.list-style-1{ list-style : inside url(/img/style_css/puce.gif) } 
.list-style-2{ list-style : outside  url(/img/style/nexistepas.gif) } 
</style>
<ol>
 <li style="font-weight:normal">normal
  normal
 <li class="list-style-0">list-style : inside lower-alpha<br>
  list-style: lower-alpha outside
 <li class="list-style-1">inside list-style : URL(background.gif) <br>
  inside list-style: URL(background.gif) 
<li class="list-style-2">list-style: URL(nexistepas.gif) outside<br>
  list-style: URL(nexistepas.gif) outside
</ol>