input {
    width: 298px;
    height: 35px;
    margin: auto;
    margin-bottom: 10px;
    border-radius: 5px;
    box-shadow: None;
    font-family: 'Segoia UI', Tahoma, Geneva, Verdana, sans-serif;
    padding : 0 10px;
    font-size: 20px;
    border: 1px solid black;
}


#button-connexion {
    width: 298px;
    height: 35px;
}

div #div-login {
    width: 100%;
    height: 23vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

form {
    width: 100%;
}

@media(max-width:400px){
    input{
        width: 80%;
    }

    #button-connexion {
        width: 80%;
    }
}