.login_form.blocked {
  position: relative;
}

.login_form.blocked::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.5) url(images/background-action.gif)
    no-repeat center;
  content: "";
  cursor: wait;
}

h2 {
  margin-top: 1em;
}