html, body {
    margin:0;
    padding:0;
}

body{
    background-image: url(fond.png);
    background-repeat: no-repeat;
    background-size: cover;
}

nav{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    height: 50px;
    width: auto;
    background-color: orangered;
    font-family: Arial;
}

li{
    list-style: none;
}

div{
    color: orangered;
    font-family: Arial;
}

h1{
    color: orangered;
    font-family: Arial;
    margin: 10px;
}

p{
    color: orangered;
    font-family: Arial;
    margin: 10px;
}

#boutton{
    display: flex;
    justify-content: center;
}

input{
    margin-top: 20px;
    background-color: orangered;
    height: 30px;
    width: 100px;
    border: 2px solid black;
    border-radius: 10px;
    font-family: Arial;
}

#divc{
    display: flex;
    justify-content: center;
}

#ftop{
    display: flex;
    flex-direction: row;
}

.r{
    color: red;
}

.pasvue{
   visibility: hidden;
}

.vue{
    backface-visibility: inherit;
}