body, html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}

body {
  background: #feffdf;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
  font-family: monospace;
}

#app {
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
          flex-direction: column;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
  height: 87vh;
  width: 46vh;
  -webkit-transform: scale(0.8);
          transform: scale(0.8);
  border-radius: 2rem;
  background-color: #ef5a5a;
  color: #fff;
  box-shadow: 0px 2vh 10vh rgba(0, 0, 0, 0.3);
  overflow: hidden;
  border: 1vh solid #F0F0F0;
  box-sizing: border-box;
}

.countdown {
  font-size: 5em;
}