#m-viewer {
  height: 0;
  overflow: hidden;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

#poster {
  width: 100%;
  height: 100vh;
  background: #f7f6bb;
  display: block;
}

#button-wrapper {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  
  background-color: #87a922;
  color: white;
  font-size: 30px;
}

#arbtn {
  display: none;
  width: 200px;
  height: 70px;
  background-color: #fcdc2a;
  color: black;
  font-size: 20px;
  border-radius: 20px;
  cursor: pointer;
  outline: none;
  border: 1px solid #114232;
}