html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  overflow: hidden;
  font-family: Helvetica, Arial, sans-serif;
}

body {
  background-color: #000;
  color: #FFF;
}

button:focus {
  outline: none;
}

#loader {
  background-color: #333;
  border-radius: 2px;
  overflow: hidden;
  width: 100px;
  height: 10px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
}

#loadProgress {
  background-color: #FFF;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
}

.hidden {
  display: none;
  visibility: hidden;
}

#start {
  border: 1px solid white;
  padding: 5px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

svg {
  display: inline-block;
  position: absolute;
  z-index: 100;
  width: 96px;
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
}

#ui {
  z-index: 100;
  button {
    padding: 0;
  }
}

.btnEnter {
  background: none;
  border: none;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
}

.btnNext {
  background: none;
  border: none;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
}
