h1 {
  font-size: 1.2em;
  margin: 0.7em;
}

h3 {
  font-size: 1em;
  margin: 0 0 0.5em 0;
}

#main {
  display: flex;
}

#main > .editor-box {
  display: flex;
  flex: 1;
  flex-direction: column;
  margin: 0 1vw;
}

#main > .editor-box > div {
  border: #c0c0c0 solid 1px;
}