.fond { background-attachment: fixed; background-color: #000000; background-image: 
url(fond-lancement.jpg); background-repeat: no-repeat; 
background-position: center top} .texte {  font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 16px; font-style: normal; color: #000000; text-align: justify}
h1 {  font-family: tahoma; font-size: 24px; font-weight: bold; color: #000000}
h1 {  }
h2 {  font-family: tahoma; font-size: 18px; font-weight: normal; color: #000000}
h1 {  }
h2 {  }