main {
  display: flex;
}

#textarea {
  padding: 10px;
  width: 300px;
  height: 500px;
}

#result-container {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

#result {
  padding: 10px;
  white-space-collapse: break-spaces;
  font-size: small;
  background: aliceblue;
  flex-grow: 1;
}

mark {
  padding: 3px;
  background: rgb(255 126 126);
}