body{
    font-family: Arial;
    text-align: center;
    font-size: 16px;
    margin: 0;
    padding: 0;
    background-image: url('images/ville.png');
        background-size: cover;
        background-position: center;
        background-repeat;
    }

  header {
    background-color: aqua;
    color:black;
    padding: 10px;
    }

    h1 {
        font-family: Impact;
        font-size: 3rem;
        text-transform: black;
        }

        nav{ 
            background-color:black;
            padding: 10px;
            position: sticky;
            top: 0;
        }

        nav a{
            color:aliceblue;
            text-decoration: none;
            margin: 0 15px;
            font-weight: bold;
        }

        nav a:hover {
            text-decoration: underline;
        }

        section {
            padding: 30px 20px;
            border-bottom: 1px solid #ccc
        }

        footer{
            font-size: 0.75rem ;
        }

        html {
            scroll-behavior: smooth;
        }
.bloc {
    max-width: 70% ;
    margin: auto;
    padding: 2rem;
    background-color: #ffffff;
    box-sizing: border-box;

    }