.idcentre
{
    margin: 0 auto;
    color: #f7f7f7;
    text-align: center;
    max-width: 300px;
}

body
{
    margin: 0;
    background-image: url('fond.jpg');
    background-repeat: no-repeat;
    background-position: center;
}

.btn
{
    color: #c5c5c5;
    background-color: #6e6e6e;
    width: 100%;
    margin-top: 50px;
}

.logo
{
    background: transparent;
    border: none;
    padding-bottom: 50px;
}

.form-control
{
    color: #555;
}

#seconnecter
{
    padding-top: 45px;
}

.container
{
    margin-top: 10%;
}