.titre{

  text-align :center;
  
  color : #FFFFFF;
  
}

.site{

  text-align :center;
  
  padding :10%;
  
}

body{

  background: #000000;
  
  text-align :center;
  
  margin-left :auto;
  
  margin-right :auto;
  
  color : white;
  
}
a{
  
  border-radius:10px;
  
  border:none;
   
  display:inline-block;
  
  padding:8px 16px;
  
  vertical-align:middle;
  
  overflow:hidden;
  
  text-decoration:none;
  
  color:black;
  
  background-color:#FFFFFF;
  
  text-align:center;
  
  cursor:pointer;
  
  white-space:nowrap;
  
  margin-bottom: 5px;
}