body {
    background-image: url(images/fond.png);
    background-repeat: repeat-y;
    background-position: center top;
    font-family: Verdana, sans-serif; 
    color: #393939; 
    font-size: 13px; 
}

a {
    color: #E3532D; 
}
#conteneur1 {
    width: 920px;
    height: 135px;
    margin: 0 auto; 
    background-color: #FFFFFF; 
    background-image: url(images/header.jpg); 
    background-repeat: no-repeat; 
    background-position: right top; 
    position: relative; 
}

#conteneur1 img {
    margin-top: 20px;
    margin-left: 20px;
}
#conteneur2 {
    width: 920px;
    height: 50px; 
    background-color: #000000;
    margin: 0 auto; 
    display: flex; 
    justify-content: space-between; 
}

.menu-item {
    width: 920px;
    height: 27px; 
    color: white; 
    width: 20%; 
    margin: 5px 10px 5px 10px; 
    text-align: center; 
    padding: 5px 0; 
    cursor: pointer; 
}
#conteneur4 {
    width: 920px;
    margin: 0 auto;
    display: flex;
    background-color: #FFFFFF;
}

#colonne-gauche {
    width: 280px;
    margin-left: 10px;
    text-align: center;
}

#colonne-gauche h2 {
    color: #E3532D;
    text-decoration: underline;
}

.photo-expert {
    display: block;
    margin: 10px auto;
    max-width: 100%;
    height: auto;
}

.legende {
    text-align: center;
    color: grey;
    font-style: italic;
}

#colonne-droite {
    width: 600px;
    margin-left: 10px;
}

#colonne-droite h1 {
    background-color: #E3532D;
    color: #FFFFFF;
    font-size: 24px;
    padding: 10px;
    margin: 10px 0;
}

.texte-principal {
    margin: 5px;
    text-align: justify;
}

.programme-text {
    color: #000000;
}

.programme-text a {
    color: #E3532D;
}