.custom-modal-content {
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
    background: #45aadc;
}

#closeButton {
    border: 1px solid #b1a5a5;
    border-radius: 20px;
    font-size: 12px;
    padding: 6px;
}

#joinButton {
    background: #63c0ed;
    color: #ffff;
}

.modal-dialog-custom {
max-width: 400px;
margin: auto;
}

@media (max-width: 576px) {
.modal-dialog-custom {
position: fixed;
bottom: 0;
right: 0;
margin: 3px;
width: 90%;
max-width: 260px;
border-radius: 10px 0 0 0;
box-shadow: -2px -2px 8px rgba(0, 0, 0, 0.2);
}

.modal-body {
padding: 3px;
}

.form-control {
font-size: 12px;
margin-left:12px;
width: 90%;
}

.modal-footer .btn {
font-size: 14px;
padding: 6px;
width: 40%;

}
}