html {
  background-color: gray;
  font-family: sans-serif;
}

.content{
  height: 100%;
  width: 100%;
  text-align: center;
}

.login-window{
  background-color: white;
  width: 480px;
  height: 240px;
  display: inline-block;
  padding: 24px;
  border: 1px solid lightgray;
  border-radius: 8px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.form-control{
  display: inline-block;
  width: 90%;
  margin: 10px 20px 15px 20px;
  padding: 10px;
  box-sizing: border-box;
  font-size: 16px;
  border-radius: 4px;
  border: 1px solid gray;
}

button.form-control{
  background-color: black;
  color: lightgray;
}

button.form-control:hover{
  background-color: darkgray;
  color: white;
}

span.form-control {
    border: 0px;
}