*{
    margin: 0;
    padding: 0;
}

body{
    background: grey;
    background-size: 90rem;
    font-family: Consolas;
    color: white;
}

#profil{
    /*background: url("")no-repeat;*/
    background-size: 90rem;
}

#livreor{
    /*background: url("")no-repeat;*/
    background-size: 90rem;
}

#connexion{
    /*background: url("")no-repeat;*/
    background-size: 90rem;
}

#inscription{
    /*background: url("")no-repeat;*/
    background-size: 90rem;
}

#commentaire{
    /*background: url("")no-repeat;*/
    background-size: 110rem;
}

.titree{
    text-align: center;
    padding: 2rem;
    background-color: black;
}

section#contact{
    padding: 50px 0px;
    font-size: 22px;
}

section#contact .container{
    text-align: center;
    width: 900px;
    border-radius: 10px;
    padding: 30px;
    background-color: black;
    color: white;
    font-size: 18px;
}
section#contact .container .titre{
    text-align: center;
    margin-bottom: 35px;
}

section#contact .container .titre h1{
    font-size:30px;
    padding: 40px;
}

section#contact .container form {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    max-width: 90rem;
}

section#contact .container form input{
    width: 80%;
    margin: 20px 0;
    padding: 15px;
    box-sizing: border-box;
}

.autre{
    text-align: center;
    width: 900px;
    border-radius: 10px;
    padding: 30px;
    background-color: black;
    color: white;
    font-size: 18px;
}

.post{
    width: 60%;
    resize: none;
    height: 130px;
    margin-bottom: 35px;
    text-align: center;
    font-size: 20px;
}

.clique{
    color: white;
    background: #0069d9;
    border-color: #0062cc;
    font-size: 20px;
    text-decoration: none;
}

.clique:hover{
    color: lightskyblue;
    transition: 2ms;
    cursor: pointer;
}

#btn-home{
    margin: 15px;
    margin-top: 15rem;
}

#laisse{
    display: flex;
    margin-left: auto;
    margin-right: auto;
}

input{
    text-align: center;
}

.topnav {
    background: url("https://www.emana.io/wp-content/uploads/2021/02/Purple-and-Blue-Space-4k-Ultra-HD-Wallpaper-Background--scaled.jpg")no-repeat;
    overflow: hidden;
}
.topnav i{
    float: right;
}
.topnav a {
    color: #f2f2f2;
    float: right;
    display: block;
    text-align: center;
    padding: 14px 40px;
    text-decoration: none;
    font-size: 20px;
}

.topnav a:hover {
    background-color: #ddd;
    color: black;
}

.topnav a:active {
    color: red;
    transition: 10ms;
}

.topnav .icon {
    display: none;
}

footer{
    text-align: center;
}

.liens{
    float: right;
}

#com{
    display: block;
    font-size: 20px;
    border-collapse: collapse;
    box-shadow: 0px 10px 50px -10px white;
    background-color: black;
    color: white;
}

.com-base h3{
    padding: 30px;
    width: 900px;
}

.com-base{
    margin: 20px;
    text-align: center;
}

.com-poste{
    background-color: orange;
}

.com-login{
    background-color: blue;
}

.com-comentaire{
    background-color: fuchsia;
    padding: 9000px;
}

.erreur_ins{
    color: red;
}

@media screen and (max-width: 600px) {
    .topnav a:not(:first-child) {display: none;}
    .topnav a.icon {
        float: right;
        display: block;
    }
}

@media screen and (max-width: 600px) {
    .topnav.responsive {position: relative;}
    .topnav.responsive a.icon {
        position: absolute;
        right: 0;
        top: 0;
    }
    .topnav.responsive a {
        float: none;
        display: block;
        text-align: left;
    }
}

::selection{
    background: black;
    color: blueviolet;
}