.post-ig {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
}

.container-descricao h4 {
  position: relative;
  background-color: var(--cor-destaque-numeros);
  padding: 10px 30px;
  text-align: center;
  margin: 16px auto;
  display: inline-block;
  color: #000;
}

.container-descricao h4::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 10px solid var(--cor-destaque-numeros);
}



@media (max-width: 768px) {
  .container-descricao h4 {
    margin-left: 20px;
  }
  .list,
  .lista {
    margin-left: 20px;
  }
}