body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    padding: 30px;
}

.cta {
    display: inline-block;
    border: 3px dashed #1a73e8;   /* borda azul grossa tracejada */
    background-color: #eaf2fe;    /* fundo claro */
    color: #1a73e8;
    font-weight: bold;
    font-size: 13px;
    text-decoration: none;
    padding: 12px 20px;
}