style.css

:root {
  --nav-height: 2rem;
  --nav-padding: 0.2rem;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
}

nav {
  display: flex;
  justify-content: right;
  align-items: flex-end;
  height: var(--nav-height);
  padding: var(--nav-padding);
  margin: 0;
  background-color: #211233;
  color: #eeeeee;
}

.navbutton {
  border: none;
  font-size: 1.2rem;
  background-color: inherit;
  color: inherit;
  cursor: pointer;
  transition: color ease-in-out 125ms, font-size ease-in-out 125ms;
  margin: 0;
  padding: 0 0.5rem;
  text-align: center;
}

.nava {
  border: none;
  font-size: 1.2rem;
  background-color: inherit;
  color: inherit;
  cursor: pointer;
  transition: color ease-in-out 125ms, font-size ease-in-out 125ms;
  margin: 0;
  padding: 0;
  text-align: center;
}

nav > a {
  text-decoration: none;
}

.navbutton:hover {
  color: #ffffff;
  font-size: 1.3rem;
}

nav > .left {
  margin-right: auto;
}

#editor {
  position: absolute;
  top: calc(var(--nav-height) + calc(var(--nav-padding) * 2));
  right: 0;
  bottom: 0;
  left: 0;
}

#settings {
  color: #aaaaaa;
  z-index: 1;
  position: absolute;
  right: 0;
  top: calc(var(--nav-height) + calc(var(--nav-padding) * 2));
  margin: 1rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  background-color: #211233;
  border: 2px solid #bc13fe;
  border-radius: 10px;
  width: 10rem;
  gap: 1rem;
}

#settings > span {
  display: flex;
  flex-direction: column;
}

#settings > h3 {
  margin: 0.3rem 0;
  padding: 0;
}