#logo{
  margin-top: 50px;
}

#presentation{
  margin:auto;
  max-width:450px;
}

#email {
  margin:auto;
  max-width:410px;
}

#presentation {
  font-size: 20px;
}
#register_label {
  font-size : 17px;
  margin:30px auto 10px;
  max-width:360px;
}
#social-network{
  margin-top: 20px;
  text-align:center;
}

/* Confirmation */
#confirmation-message {
  text-align:center;
  font-size:20px;
  margin: 20px auto 0px;
  max-width: 390px;
  padding : 0px 5px;
}
@media screen and (max-width: 360px) {
  #logo{
    margin-top: 5px;
  } 
  #confirmation-message {
    margin: 10px auto 0px;
  } 
}