a.button {
    color: #fff;
    background-color: #1679c0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
    border-radius: 5px;
    font-family: Montserrat, Arial, Helvetica, sans-serif;
    font-size: 1em;
    font-weight: 600;
    padding: 6px 14px;
    vertical-align: middle;
}

a.button:hover {
    filter: brightness(1.08);
    text-decoration: none;
}