ul{
  margin: 0;
  padding: 0;
}
li{
  margin: 1px;
  height: 20px;
  padding: 2px 10px 2px 30px;
  list-style: none;
  background-color: rgb(255,220,220);
  transition: 0.25s;
  background-image: url('img/fichier.jpg');
  background-repeat: no-repeat;
  background-size: 22px 22px;
  background-position: 1px 1px;
}
li.dossier{
  background-image: url('img/dossier.png');
}
a, a:visited{
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: rgb(50, 50, 50);
}
li:hover{
  background-color: rgb(255,180,180);
}