body {
  background: url('../_img/fond_lnh_centre.jpg') no-repeat center center;
  background-size: cover;
}
.box-wrapper {
  padding: 30px 60px; 
  border-radius: 30px; 
  background: #FFF; 
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

body.form-signin, body.form-preferences {
  display: flex;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}

.form-signin main {
  width: 100%;
  max-width: 430px;
  padding: 15px;
  margin: auto;
}
.form-preferences main {
  width: 100%;
  max-width: 600px;
  padding: 15px;
  margin: auto;
}

.form-signin .checkbox {
  font-weight: 400;
}

.form-signin .form-floating:focus-within {
  z-index: 2;
}

.form-signin input[type="email"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

@media only screen and (max-width: 650px),	only screen and (max-device-width: 650px) {
  .box-wrapper {
    padding: 20px;
  }
}