.celtisdl-button .celtisdl-button__link {
    display: inline-block;
    padding: 0.7em 1.4em;
    font-size: 1.2em;
    line-height: 1.7;
    text-align: center;
    text-decoration: none;
    word-break: break-word;
    overflow-wrap: break-word;
    color: #fff;
    background-color: #4285f4;
    border-radius: 4px;
    cursor: pointer;       
}

.celtisdl-button__link small {
    display: block;
}