.bloc_accueil{
    border: 2px solid blue;
    border-radius: 3%;
    padding: 1%;
    padding: 1%;
}

.logo{
    width: 125px;
}

#commun, #java, #php{
    margin-top: 1%;
}

.poste{
    font-weight: bold;
}

.div_logo{
    width: auto;
    text-align: center;
}

A:hover{
    color: #0e69be;
    text-decoration: none;

}