.violet      { font-family: Georgia; font-size: 12pt; color: #FFFFFF; font-weight: bold; 
               background-color: #800080; text-align: Center; margin-top: 6; 
               margin-bottom: 6 }
.titre_chapitre { font-size: 12pt; font-family: Georgia; font-variant: small-caps; color: 
               #800080; font-weight: bold; text-align: Center; margin-top: 12 }
.vert        { font-family: Georgia; font-size: 10pt; color: #FFFFFF; font-weight: bold; 
               background-color: #008000; text-align: Center; margin-top: 6; margin-bottom: 6 }