p.caption {
  color: #777;
  margin-top: 10px;
}
p code {
  white-space: inherit;
}
pre {
  word-break: normal;
  word-wrap: normal;
}
pre code {
  white-space: inherit;
}

div.Essentiel {
background:url('images/Essentiel.png') 3% 50% no-repeat #dbe0ef;
border-top:2px solid #aeb8de;
border-bottom:2px solid #aeb8de;
padding:1em 1em 1em 5em;
margin: 2em ;
}