h1{
    position: absolute;
    top: 2%;
    left: 2%;
    font-size: 25px;
    line-height: 2cm;
}
header{
    position: fixed;
    top: 0%;
    background-color: blue;
    color: white;
    height: 2cm;
    width: 100%;
}
.menu > div >a{
    color: white;
    text-decoration: none;
}
.menu{
    position: absolute;
    right: 2%;
    top: 3%;
    line-height: 2cm;

}
.valider{
    color: white;
    background-color: blue;
}
@media screen and (max-width:700px) {
    .menu{
        line-height: 1cm;
        padding: 1cm;
    }
}