.btn-join {
    color: #ffffff;
    padding: 5px 0px;
    margin: 0px 3px;
    border: 1px solid #dc2a46;
    background: linear-gradient(to bottom, rgba(206,4,28,1) 0%, rgba(138,25,34,1) 100%);
    text-shadow: 1px 1px 1px #000;
    font-weight: bold;
}