body {
  background: rgba(0, 0, 0, 0.9);
  margin: 0;
  color: #fff;
  font-family: monospace;
}

.center {
  text-align: center;
  margin: auto;
}

.notepad {
  width: 80%;
  height: 80vh;
  padding: 12px 20px;
  box-sizing: border-box;
  border: 2px solid #ccc;
  border-radius: 4px;
  background-color: #696969;
  resize: none;
  font-size: 1rem;
  outline: none;
}

button {
  margin-top: 20px;
  font-size: 1em;
  padding: 5px;
  background-color: #333;
  color: #fff;
  border-radius: 5px;
  border: #333 1px solid;
}

button:hover {
  border: #696969 1px solid;
}

a:link {
  color: #f4f4f4;
  text-decoration: none;
}

a:visited {
  color: #f4f4f4;
}

a:hover {
  background-color: #333;
}

/* Small Screens */
@media (max-width: 900px) {
  .notepad {
    font-size: 1.5rem;
    height: 70vh;
    width: 90%;
  }
}