#div_bloc_txt{
  float:left;
  background-color: #efefef;
  padding:5px;
  width:400px;
}

#div_bloc_droite{
  float:right;
  width:220px;
  padding:5px;
  margin-bottom:10px;
  background-color: #CF0C0C;
  color:#ffffff;
}