.titre {
    border-style: solid;
    border-width: 1px;
    text-align: center;
    text-transform: none;
    font-weight: bold;
    font-family: Arial,Helvetica,sans-serif;
    font-size: x-large;
    background-color: #EEE;
    }

  .onglet { 
    border-style: solid;
    border-width: 1px;
    border-color: black;
    padding-left: 1em;
    padding-right: 1em;
    text-align: left;
    font-weight: bold;
    background-color: #EEE;
    }

  .onglet:hover {
    background-color: rgb(230,230,245);
    }

  a {
    text-decoration: none;
    color: rgb(144, 90, 23);
    }

  a:hover {
    color: red;
    }

  .titrebloc {
    margin: 0.5em;
    text-align: center;
    font-weight: bold;
    font-family: Arial,Helvetica,sans-serif;
    font-size: large;
    }

  .bloc {
    border-style: solid;
    border-width: 1px;
    background: #EEE url("images/bleu_light.jpg") no-repeat top fixed;
    padding: 1em 1em 1em 1em;
    margin: 1em 1em 1em 1em;
    }

  .code {
   background: #DDF;
   margin: 2em; padding: 2em;
    }

  body {
    margin: 1em;
    
    background: #DEF url("images/bleu.jpg") no-repeat top fixed;
    }

  td {
    vertical-align: top;
    }

  .biblio {
   font-family: arial;
   text-align: left;
   }

  .author {
   
   }
  .title {
   font-weight: bold;
   }

  .journal {
   font-style: italic;
   }