:root {
--btn-text: #fff;
}
.div-wa-btn{
    background-color: #2db742;
    border-radius: 6px;
    box-shadow: 0 0 10px 0 rgba(0,0,0,.5);
    padding: 10px 15px 10px 20px;
    color: var(--btn-text);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    width: fit-content;
    transition: filter .3s ease-in-out;
}
.div-wa-btn:hover {
  color: var(--btn-text);
  filter: brightness(.8);
}