.countdown {
  background-size: cover;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  text-align: center;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizelegibility;
  font-size: 20px;
  transition: background-color ease-in-out 0.3s;
}
.countdown .text {
  margin-bottom: 8px;
}
.countdown .time:empty,
.countdown .done:empty {
  display: none;
}
.countdown .time {
  margin-right: 4px;
}
.countdown .time:after {
  padding-left: 2px;
  content: attr(data-unit-text);
  font-size: 17px;
  opacity: 0.7;
}
.countdown.countdown-img {
  transition: background ease-in-out 0.3s;
  background-image: url(data:image/png;base64,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);
  background-color: transparent;
}