body{
    background-image: url(https://images-ext-2.discordapp.net/external/LGzhwR1q5jrIBv9t3rsGe5cW-Xep4vbPL4JZvHZ9FXg/%3Fcb%3D20160917140553%26path-prefix%3Dfr/https/static.wikia.nocookie.net/animemanga-encyclopedie/images/4/42/Mugiwara_no_Ichimi_PH.png/revision/latest?width=990&height=559);
    background-repeat: no-repeat;
    background-size: 100%;
}

.flex{
    display: flex;
    flex: row;
    margin: auto 20%;
    padding: auto;
    opacity: 0.7;
}

p{
    font-size: 24px;
}
h2{
    font-size: 35px;
}

h1{
    font-size: 50px;
    text-align: center;
}


.gris{
    background-color: #dcdcdc;
    border: thick double black ;
    margin: 50px;
    padding: 20px;
}


.boutonmenuprincipal {
    background-color: #37e8e8;
    color: white;
    border: none;
    cursor: pointer;
    padding: 25px;
}

.boutonmenuprincipal:hover {
    background-color: #dcdcdc;
    transition: 500ms;
}

.dropdown {
    position: relative;
    float: right;
}

.dropdown-child {
    display: none;
    background-color: #f28c8c;
}
    
.dropdown-child a {
    color: white;
    padding: 20px;
    text-decoration: none;
    display: block;
}

.dropdown:hover .dropdown-child {
    display: block;
}

.dropdown-child a:hover{
    background-color: #0fc41e ;
}