#definir ul{
  list-style-type: none;
  text-align: center;
  line-height: 18px;
  font-weight: bold;
  font-size: 20px;
  padding: 0 10px;
}

#definir li {
  margin: 15px 0;
}

#parcours p {
  text-align: justify;
  text-indent: 2ex;
  margin: 1px 0px;
}