textarea {
  width: 100%;
  height: 90%;
  resize: none;
}

#last-output-area {
  position: absolute;
  right: 2%;
  bottom: 4%;
}

/********************************************************************************/

body,
body > * {
  overflow: hidden;
  background-color: black;
  color: red;
  font-size: 18px;
}

body > * {
  padding: 1%;
  border: 2px solid darkred;
  outline: none;
}

h1 {
  outline: none;
  border: none;
  height: 4%;
  font-size: 32px;
}

textarea {
  overflow-y: auto;
}

textarea::-webkit-scrollbar {
  background: transparent; /* Chrome/Safari/Webkit */
  width: 0px;
}

textarea {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE 10+ */
}