.announce {
  position: fixed;
  z-index: 9999;
  top: 0;
  width: 500px;
  left: calc(50% - 250px);
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  text-align: center;
  padding: 20px;
  margin: 0;
  user-select: none;
}

.announce-danger {
  color: white;
  background-color: #d9534f;
}

.announce-info {
  color: white;
  background-color: #5bc0de;
}

.announce-success {
  color: white;
  background-color: #5cb85c;
}

.announce-warning {
  color: white;
  background-color: #f0ad4e;
}

@media screen and(max-width: 500px) {
  .announce {
    width: 100%;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    left: 0;
  }
}