.h2{
    margin-left: 150px;
    text-decoration: underline;
}
.la{
    margin-left: 100px;
    padding: 15px;
    border: 2px solid gray;
}
.bouton{
    border: 2px solid gray;
    border-radius: 100%;
    color: aliceblue;
    background-color: gray;
    font-size: 50px;
}
.ass{
    background-color: aqua;
}