.fond {
    background-color: mediumspringgreen;
}

#sommaire a {
    text-decoration: none;
    color: black;
}

#actes a {
    text-decoration: none;
    color: black;
    font-size: small;
} 

#sommaire h1 {
    font-size: medium;
}

#sommaire h2 {
    font-size: small;
}

#sommaire h3 {
    font-size: smaller;
}