body {
    background: black url('jedi_fond.png') no-repeat fixed center;     
    color: white;               
         
}

.zone-jedi {
    border-color: white;    
    padding: 30px;               
    width: 500px;
    text-align: center;
    border-radius: 20px;                 
    margin: 80px auto;
}

input, textarea {
    border: 2px solid black;        
    padding: 10px;
    border-radius: 8px;                 
}