door.css

html, body {
  padding: 0;
  margin: 0;
}

#door-state div[class|="door-sign"] {
  display: none;
}

.door-state-closed .door-sign-closed {
  display: block !important;
}

.door-state-open .door-sign-open {
  display: block !important;
}

.door-state-error .door-sign-error {
  display: block !important;
}

.door-state-checking .door-sign-checking {
  display: block !important;
}

#door-state {
  background: black;
  width: 200px;
  height: 100px;
  color: #fff;
  position: relative;
}

#door-state span {
  display: block;
  position: absolute;
}

#door-state .door-cursive {
  font-size: 30px;
  line-height: 40px;
  font-family: 'Marck Script', cursive;
  font-weight: 500;
  text-decoration: underline;
  -webkit-transform: rotate(-10deg);
  top: 0;
  left: 10px;
}

#door-state .door-we-are {
  right: 10px;
  top: 10px;
  font-size: 28px;
  line-height: 30px;
  text-transform: uppercase;
  font-family: 'Maven Pro';
  font-weight: 900;
}

#door-state .door-status {
  color: #f00;
  font-size: 58px;
  line-height: 38px;
  font-weight: 900;
  font-family: 'Exo';
  bottom: 20px;
  left: 0;
  text-align: center;
  width: 100%;
  text-transform: uppercase;
}

.door-sign-closed .door-status {
  font-size: 50px !important;
}

.door-sign-closed .door-cursive {
  font-size: 40px !important;
}

.door-sign-checking .door-status {
  font-size: 40px !important;
  color: #aaa !important;
}

.door-sign-open .door-status {
  color: #0f0 !important;
}

.door-sign-error .door-status {
  font-size: 20px !important;
  line-height: 20px !important;
  color: #00f !important;
}

#door-state #door-state-timestamp {
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  font-size: 12px;
  line-height: 15px;
  font-family: "Exo";
}