:root {
  --black: hsl(0, 0%, 0%);
  --background: hsl(40, 100%, 96%);
  --dark_beige: hsl(38, 85%, 86%);
  --light_beige: hsl(27, 85%, 97%);
  --time: 200ms;
  --nav-base: #303030;
  --nav-highlight: #905003;
}

body {
  margin: 0;
  color: var(--black);
  display: grid;
  grid-template-columns: minmax(12rem, 30%) 48rem auto;
}

header {
  grid-column: 2;
  grid-row: 1;
}

.hljs {
  border: 2px solid;
  border-color: #745b35;
  border-radius: 1rem;
  background: #fff0d4;
  box-shadow: 0.3rem 0.4rem 0.6rem rgba(0, 0, 0, 0.3);
  margin: 1rem;
  tab-size: 2;
}

p code {
  font-size: 0.9rem;
  padding: 0 0.2rem;
  border-radius: 0.4rem;
  border: solid 1px #e9cd9c;
  white-space: nowrap;
}

pre code {
  font-size: 0.7rem;
}

nav {
  color: var(--nav-base);
}

nav a:link, nav a:visited {
  color: var(--nav-base);
}

a:link.highlight, a:visited.highlight {
  color: var(--nav-highlight);
}

.nav-top {
  padding: 1rem;
}

.nav-top > a {
  margin: 0 0.5rem;
}

.nav-top > a:active {
  color: red;
}

.nav-top ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-top li {
  display: inline-block;
  padding-left: 1rem;
}

.nav-side {
  grid-column: 1;
  grid-row: 2;

	position: -webkit-sticky;
	position: sticky;

  top: 3.5rem;
  display: flex;
  flex-direction: column;

  min-width: 12rem;
  height: 90vh;
  font-size: 1.2rem;

  overflow: scroll;
}

.nav-side ul {
  list-style: none;
  text-align: right;
  margin: 0;
}

.nav-side > ul {
  padding: 0 1.2rem 0 0;
}

.nav-side > ul > li > ul {
  padding: 0.2rem 0.4rem;
  font-size: 0.4rem;
  transition: font-size var(--time);
}

.nav-side > ul > li:hover > ul,
.nav-side > ul > li:focus-within > ul,
.nav-side > ul > li.grow > ul {
  font-size: 0.8rem;
  transition: font-size var(--time);
}

.nav-smaller {
  font-size: 0.9rem;
}

main {
  grid-column: 2;
  grid-row: 2;
  padding: 3rem 6rem 3rem 6rem;
  background-color: var(--background);
  border-radius: 0.5rem;
  box-shadow: 0.5rem 0.5rem 1rem grey;
}

iframe {
  border: none;
  display: block;
  overflow: hidden;
  width: 100%;
}

p {
  margin-left: 1rem;
  margin-right: 1rem;
}

pre {
  overflow: auto;
  margin-left: 1rem;
}

table, th, td {
  font-size: 0.7rem;
  margin: auto;
  border: solid 1px;
  border-collapse: collapse;
}

th {
  padding: 0.3rem 0.8rem 0.3rem 0.25rem;
}

td {
  padding: 0.3rem 0.5rem;
}

th {
  background-color: var(--dark_beige);
}

tr {
  background-color: var(--light_beige);
}

output {
  display: block;
  max-height: 20rem;
  margin: 1rem;
  overflow: auto;
  text-align: left;
}

output pre {
  max-height: 20rem;
  margin: 0;
}

[id="out"] {
  float: right;
  overflow: auto;
  max-height: 30rem;
}

.terminal pre {
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  --grey-white: hsl(0, 0%, 95%);
  --grey-light: hsl(0, 0%, 75%);
  --grey-mid: hsl(0, 0%, 50%);
  --grey-dark: hsl(0, 0%, 30%);
}

[id=div1-a], [id=div1-b], [id=div1-c] {
  float: left;
  background: var(--grey-light);
  border: solid red 0.1rem;
  width: 23rem;
  height: auto;
}

[id=div2-a], [id=div2-b], [id=div2-c] {
  background: var(--grey-mid);
  border: solid red 0.1rem;
  margin: 2rem 3rem 3rem;
  height: auto;
}

[id=div3-a], [id=div3-b], [id=div3-c] {
  background: var(--grey-dark);
  border: solid red 0.1rem;
  margin: 2rem 3rem 3rem;
  height: auto;
}

[id=div4-a], [id=div4-b], [id=div4-c] {
  display: block;
  background: var(--grey-white);
  border: solid red 0.1rem;
  margin: 2rem 3rem 3rem;
  height: 3rem;
  width: auto;
}

.gold {
  background: gold;
}

#a01 pre, #a02 pre {
  padding-left: 1rem;
}

[id=currentTargetFrame] {
  height: 10rem;
}

[id=handleEventFrame] {
  height: 5rem;
}

[id=keyboardFrame] {
  height: 10rem;
  width: 55%;
}

[id=out-03] {
  max-height: 8rem;
}

[id=enter-leave-over-outFrame] {
  width: 59%;
  height: 42rem;
}

[id=out-04] {
  margin-top: 3rem;
  max-height: 36rem;
  overflow: hidden;
}

[id=btn-04] {
  position: relative;
  left: 10rem;
  top: 1.5rem;
}

[id=targetPropertyFrame] {
  width: 58%;
  height: 27rem;
}

[id=out-05] {
  margin-top: 3rem;
  max-height: 19rem;
  overflow: hidden;
}

[id=btn-05] {
  position: relative;
  left: 10rem;
  top: 1.5rem;
}

[id=out-06] {
  margin-top: 3rem;
  max-height: 19rem;
  overflow: hidden;
}

[id=btn-06] {
  position: relative;
  left: 10rem;
  top: 1.5rem;
}

[id=frame-07] {
  height: 27rem;
  overflow: hidden;
}

[id=out-07] {
  max-height: 19rem;
  overflow: hidden;
}

[id=btn-07] {
  float: right;
}

[id=frame-08] {
  height: 27rem;
}

[id=out-08] {
  max-height: 19rem;
  width: 10rem;
  overflow: hidden;
}

[id=btn-08] {
  float: right;
}

[id=frame-09] {
  height: 27rem;
}

[id=out-09] {
  max-height: 19rem;
  width: 10rem;
}

[id=btn-09], [id=start-09], [id=stop-09] {
  float: right;
}

[id=frame-10] {
  height: 27rem;
  width: 25rem;
}

[id=frame-11] {
  height: 27rem;
  width: 25rem;
}

[id=frame-13] {
  height: 44rem;
  width: 25rem;
}

[id=frame-14] {
  height: 45rem;
}

[id=frame-15] {
  height: 27rem;
}

[id=frame-16] {
  height: 27rem;
}

[id=frame-17] {
  height: 12rem;
}

[id=frame-18] {
  height: 45rem;
}

[id=frame-19] {
  height: 22rem;
}

[id=frame-20] {
  height: 50rem;
}

[id=frame-21] {
  height: 25rem;
}

[id=frame-22] {
  height: 28rem;
}

[id=frame-23] {
  height: 40rem;
}

[id=frame-24] {
  height: 22rem;
}

[id=frame-25] {
  height: 50rem;
}

[id=frame-26] {
  height: 30rem;
}

[id=frame-27] {
  height: 27rem;
}

[id=frame-forms-01] {
  height: 37rem;
}

[id=frame-forms-02] {
  height: 17rem;
}

[id=frame-forms-03] {
  height: 27rem;
}

[id=frame-forms-04] {
  height: 52rem;
}

[id=frame-forms-05] {
  height: 28rem;
}

[id=frame-forms-06] {
  height: 50rem;
}

[id=frame-forms-07] {
  height: 30rem;
}

[id=frame-forms-08] {
  height: 4rem;
}

[id=frame-forms-09] {
  height: 45rem;
}

[id=frame-forms-10] {
  height: 20rem;
}

[id=frame-forms-11] {
  height: 22rem;
}

[id=frame-forms-12] {
  height: 25rem;
}

[id=frame-forms-13] {
  height: 50rem;
}

[id=frame-module-01] {
  height: 15rem;
}

[id=frame-module-02] {
  height: 15rem;
}

[id=frame-module-03] {
  height: 15rem;
}

[id=frame-module-04] {
  height: 15rem;
}

[id=frame-module-05] {
  height: 15rem;
}