*, *::after, *::before {
box-sizing: border-box;
}

body {
    font-family: 'Nova Square', sans-serif;
    margin: 0;
    padding: 0;
    background: black;
    color: white;
    list-style:none ;
    }

    .header {
        height: 100vh;
        background: url(img/header.jpg) center center no-repeat;
        background-size: cover;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
  
      .sombre {
        font-size: 2rem;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        margin: 0;
        height: 100vh;
        width: 100%;
        background-color: rgb(0, 0, 0, 0.3);
      }
  
      .navbar {
          padding-top: 10px;
          display: flex;
          align-items: center;
          width: 100%;
          max-width: 100%;
          background-color: rgba(0, 0, 0, 0.7);
        }
        
        .navbar .logo {
          font-size: 2em;
          font-weight: bold;
          max-width: 100px;
        }
        
        .flexCentre {
        display: flex;
        align-items: center;
        justify-content: center;
        }
        
        .logo {
            margin-right: auto;
            margin-left: auto;
        }
        
        .activite_reveal {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            height: 400px;
            width: 1000px;
            margin: 30px;
        }
        
        .container {
            display: flex;
            align-items: center;
            height: 500px;
            width: 1400px;
            color: black;
            background-color: white;
            padding: 20px;
            border: solid 2px white;
            border-radius: 20px;
        }
        
        .container p {
            width: 1550px;
        }
        
        .formulaire {
        height: 100vh;
        background: black;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;

      }
  

form {
    display: flex;
    border: solid white 2px;
    border-radius: 20px;
    padding: 10px;
    flex-direction: column;
    align-items: center;
    width: 500px;
}

form input {
    margin: 10px;
}

footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
  height: 30vh;
  background-color: rgba(255, 255, 255, 0.2);
}