.fond{
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 100vh;
    background-color: #1c3f6f;
    background-size: cover;
}

.formulaire{
    display: flex;
    flex-direction: column;
    width: 600px;
    height: 600px;
    border-radius: 15px;
    margin: auto;
    background:  linear-gradient(#051031,#163258);
}
form{
    width: 400px;
    margin: auto;
}
.formulaire h2{
    margin: auto;
    margin-top: 44px;
    margin-bottom: 44px;
    color: white;
    text-decoration: underline;
}
label{
    color:white;
}
button{
    margin: auto;
}
textarea{
    height: 150px;
}
.formulaire h4{
    margin: auto;
    text-align: center;
    width: 80%;
    color: white;
}
hr{
    color: white;
    opacity: .75;
}
.erreur{
    color: red;
}
.retour{
    display: flex;
    flex-direction: row;
    position: fixed;
    top: 20px;
    left: 20px;
}
.retour a{
    text-decoration: none;
    color: white;
}