.infotext{
	position: relative;
	top: 30%;
	margin-bottom: 20%;
	width: 100%;
	height: 70%;
	padding: 50px;
	background: url(../img/vertnoir.png);
  webkit-background-size: cover; /* pour anciens Chrome et Safari */
  moz-linear-gradient-background-size:cover;
    background-size: cover; /* version standardisée */
  background-position:0 0, center;
   background-repeat: no-repeat;
    background-attachment: fixed;
      border-radius: 15px;
}
.infotext h1{
	text-align: center;
	color: #FF4500;
	font-size: 3em;
	margin-bottom: 10px;
  	font-weight: bold;
}
.infotext p{
	color: #fff;
	font-size: 1.5em;
	text-align: center;
	font-weight: bold;
}
.infotext .conteneur_head{
	text-align: center;
}
@media all and (max-width: 667px) {
.infotext {
  width: 100%;
  height: auto;
  margin: auto;
  margin-bottom: 65%;
  text-align: center;
}
.infotext .conteneur_head{
	text-align: center;
}
}
@media (min-width: 667px) and (max-width: 935px) {
.infotext {
  width: 100%;
  height: auto;
  margin: auto;
  margin-bottom: 55%;
  text-align: center;
}
.infotext .conteneur_head{
	text-align: center;
}
}
@media (min-width: 935px) and (max-width: 1750px) {
.infotext {
  width: 100%;
  height: auto;
  margin: auto;
  margin-bottom: 30%;
  text-align: center;
}
.infotext .conteneur_head{
	text-align: center;
}
}