html, body {
    margin: 0px;
    height: 100%;
    width: 100%;
    overflow: hidden;
    background-color: grey;
  }

input {
  width:50px;
}

#openOptions {
  display: none;
  background-color: rgba(255,255,255,0.5);
}

#options {
  background-color: rgba(255,255,255,0.3);
}