#TObF_index{
    margin: auto;
    width: 100%;
    margin: 10px;
    color: #000;
  }
  
  .inf{
    border: 1px solid #dddddd; 
    text-align: center; 
    padding: 1px; 
    width: 60%
  }
  
  .cle-eff{
    border: 1px solid #dddddd;  
    text-align: center; 
    padding: 1px;
  }
  
  .bloc{
    display: inline-table; 
    margin: 28px 2px; 
    width: 20%; 
    min-width: 250px;
    border: black solid 1px; 
    padding: 2px; 
    font-size: 13px;
  }
  
  .nb{
    border: 1px solid #dddddd; 
    float: right; 
    text-align: center; 
    padding: 1px 5px; 
    width: 10%; 
    height: 22px;
    min-width: 28px;
  }