.navigation{
        overflow:hidden;
        text-align: center;
        list-style: none;
        margin-bottom:1em;
        margin-top:1em;
        box-sizing: border-box;
        border: solid #EFF1E6;
        background-color: #D2D2C8;
        border-radius: 0.8rem;
    }
    .navigation li{
        float:left;
        padding: 10px;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    .navigation img{
        margin-top: 3px;
    }
    .navigation a{
        text-decoration: none;
        display:block;
        color:black;
    }
    a:hover {
                color : rgb(73, 72, 72);
            }
    body{
        background-color: #F8F5EC;
    }
    .box_ressource{
        margin-left: 80px;
        margin-right:80px ;
        padding-left: 25px;
        padding-right: 20px;
        padding-top: 3px;
        background-color: #DCD6CA;
        border-radius: 0.5rem; 
    }
    body{
        background-color: #F8F5EC;
    }
	.pdf{
    display: block;
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    border: none;
}

	@media (max-width: 500px) {
    .pdf{
        width: 100%;
    }
}