body {
    background-color: #f2f2f2;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    font-family: Arial;
  }
  
  .formulaire {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  .champ {
    margin-bottom: 15px;
  }
  
  label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
  }
  
  input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
  }
  
  button {
    background-color: #575757;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }