main.css

html, body {
  background-color: rgb(50, 50, 50);
  height: 100%;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: rgb(255, 255, 255);
}

div:focus {
  outline: none;
}

#titleColumn {
  width: 20%;
  height: 100%;
  float: left;
  background-color: rgb(60, 60, 60);
}

#titleHeader {
  width: 100%;
  height: 30px;
  background-color: rgb(60, 60, 60);
  text-align: center;
  line-height: 30px;
  vertical-align: middle;
}

#documentContent {
  width: 80%;
  height: 100%;
  float: right;
  box-sizing: border-box;
  padding: 30px;
}

.fileTitle {
  width: 100%;
  height: 30px;
  text-align: center;
  line-height: 30px;
  vertical-align: middle;
  border-top: 1px solid rgb(90, 90, 90);
}

.fileTitle:hover {
  background-color: rgb(90, 90, 90);
  cursor: pointer;
}

#menuButtons {
  width: 20%;
  background-color: rgb(60, 60, 60);;
  height: 30px;
  position: absolute;
  bottom: 0%;
}

#newNoteButton {
  width: 50%;
  height: 29px;
  float: left;
  line-height: 29px;
  vertical-align: middle;
  text-align: center;
  border-top: 1px solid rgb(90, 90, 90);
}

#saveNoteButton {
  width: 50%;
  height: 29px;
  float: right;
  line-height: 29px;
  vertical-align: middle;
  text-align: center;
  border-top: 1px solid rgb(90, 90, 90);
  color: rgb(120, 120, 120);
}

#newNoteButton:hover, #saveNoteButton:hover {
  background-color: rgb(90, 90, 90);
  cursor: pointer;
}

#newNoteNameWindow {
  width: 100%;
  height: 30px;
  text-align: center;
  background-color: rgb(90, 90, 90);;
  display: none;
}