a {
    display: block;
    border: 1px solid black;
    background-color:#f5bf21;
    color: darkblue;
    text-decoration: none;
}

a:hover {
    background-color: darkblue;
    color: #f5bf21;
}

body {
    font: 1.1rem 'Lucida Sans Unicode', 'Lucida Grande', sans-serif;
}

h3.ouvrez {
    font-style: italic;
}

div#kader2 {
    text-align: center;
}

div#kader3 > * {
    margin: 1%;
}

img#opening {
    width: 100%;
}

img#sibe {
    float: left;
    margin-top: 1%;
}

img#slider {
width: 25%;
float: left;
margin-right: 3%;
}

div#menu {
    display: grid;
    grid-template-columns: 15% 20% 20% 20% 15%;
    grid-column-gap: 2%;
    margin-bottom: 1%;
}

@media screen and (max-width: 804px) {
    div#kader1, div#kader2, div#kader3 {
    width: 100%;
    margin: unset;
    border: 2px solid black;
}

p.asso {
    font-size: 0.8em;
}

}

@media screen and (min-width: 805px) {

div#kader1, div#kader2, div#kader3 {
    width: 800px;
    margin: 0 auto;
    border: 2px solid black;
}

}