.login-menu {
  position: relative;
  width: 100%;
  height: 300px;
  margin: 20px 0;
}

.login-menu article {
  width: 50%;
  margin: auto;
  padding: 10px 20px;
  margin-top: 6px;
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 10px;
}

.login-menu input {
  display: inline-block;
  box-sizing: border-box;
  width: 100%;
  padding: 12px;
  border: none;
  margin: 10px 0;
  font-size: 18px;
}

.login-menu input:last-child {
  background-color: lightgrey;
  color: grey;
}

.login-menu input:last-child:hover {
  color: white;
  background-color: grey;
  transition-duration: 0.3s;
}