* {
  font-family: Arial, Helvetica, sans-serif;
}

#help {
  display: block;
  position: fixed;
  top: 1vh;
  left: 1vw;
  margin: 0;
  padding: 0.5rem;
  border: 1px black solid;
  color: black;
}

#help:hover {
  cursor: pointer;
}

#help-screen {
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: rgba(200, 200, 200, 1);
  transform: translateY(-50%) translateX(-50%);
}

#help-screen p {
  margin: 0;
  padding: 2rem;
}

#close-button {
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.5rem;
}

.hidden {
  display: none;
}

h1 {
  text-align: center;
}

form {
  display: flex;
  flex-direction: column;
}

#matrix-input {
  height: 50vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

#matrix-input textarea {
  resize: none;
}