.txt{

font-size:1.5em;
}
.Retour_page_Acceuil {
    margin: 50px auto 00px auto;
    width: 50%;
}
.Retour_page_Acceuil a {
    display: block;
    color: #fff;
    font-size: 1.4em;
    background: #1b75bb;
    height: 48px;
    line-height: 48px;
    text-decoration: none;
    text-transform: uppercase;
    width: 100%;
    text-align: center;
}
.Retour_page_Acceuil a:hover{
    background: #00a14b;
}

.Pdevis{
    display: block;
 
    font-size: 1.4em;
 
}