.important {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  z-index: 99999;
}

.important__container {
  background: white;
  max-width: 400px;
  padding: 2rem;
}

.important__container h2 {
  color: red;
  font-weight: bold;
  font-size: 2rem;
  margin-bottom: 1rem;
}

.important__container p {
  margin: 1rem 0;
}

.important__container button {
  background: red;
  color: white;
  padding: .6rem 1rem;
  font-size: 1rem;
  border: none;
  -webkit-box-shadow: none;
          box-shadow: none;
  cursor: pointer;
}