.vert 
{ 
 background-color: rgb(155, 248, 212); 
 color: rgb(0, 0, 0)
}
.abeille
{
    background-color: black;
    color: lightgoldenrodyellow;
}

body{
    background: url(free_to_use_cherry_blossom_wallpaper_by_cherrysdesigns_dfyt6ex-fullview.jpg) no-repeat;
    background-size: cover;
}