body{
    background-image: linear-gradient(lightgreen, darkgreen);
}
.bouton{
    background:lightgreen;
}
.bouton:hover{
    background: limegreen;
}
nav{
    background: grey;
}
nav a {
    color: black;
}
.unenote:hover{
    transform: rotate(10deg);

}
.unenote:after{
    display: none;
}
footer{
    background: black;
    color: whitesmoke;
}
h1{
    color: black;
}
p{
    color: whitesmoke;
}
.unenote{
    background: grey;
}
#test:hover{
    transform: rotate(360deg);
}

#banderoll{
    width: 100%;
}

svg{
    width: 20px ;
    height: 20px;
}