body {
  font-family: Arial, sans-serif; }

#topnav {
  background-color: #444444;
  box-shadow: 2px 2px 5px gray;
  color: #000;
  display: flex;
  height: 50px;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  z-index: 2; }

#sidenav {
  background-color: whitesmoke;
  display: flex;
  flex-direction: column;
  align-content: center;
  justify-items: center;
  height: calc(100% - 50px);
  max-height: 100%;
  left: 0;
  width: 300px;
  position: fixed;
  top: 50px;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 1; }
  #sidenav header {
    border-bottom-style: solid;
    border-color: #000;
    border-width: 1px;
    font-size: 25px;
    font-weight: 600;
    height: 50px;
    padding: 10px 20px 20px 10px;
    text-align: center; }
  #sidenav footer {
    border-color: #FFF;
    border-top-style: solid;
    border-width: 1px;
    color: #000;
    font-size: 10px;
    padding: 20px;
    text-decoration: none;
    max-width: 100%; }

.nav-link {
  border-color: #FFF;
  border-top-style: solid;
  border-width: 1px;
  color: #000;
  font-size: 25px;
  padding: 20px;
  text-decoration: none;
  max-width: 100%;
  transition-duration: 0.3s; }

.nav-link:hover {
  background-color: #ffffff;
  box-shadow: 0 0 5px; }

.nav-link-top {
  color: white;
  font-size: 25px;
  max-height: 100%;
  min-width: 5vw;
  padding: 10px 20px 20px;
  text-align: center;
  text-decoration: none;
  transition-duration: 0.3s; }

.nav-link-top:hover {
  background-color: #7e7e7e; }

#active-link {
  border-bottom-style: solid;
  border-bottom-color: mediumseagreen;
  border-bottom-width: 3px; }

#content {
  margin-left: 310px;
  margin-top: 80px;
  padding: 0 50px; }

.main-section {
  margin-bottom: 50px; }
  .main-section header {
    border-bottom-style: solid;
    border-width: 1px;
    font-size: 30px;
    padding-top: 60px;
    margin-top: -60px;
    padding-bottom: 10px; }

.sub-section {
  margin-left: 70px; }
  .sub-section header {
    margin-top: -30px;
    font-size: 25px; }

li {
  margin-top: 10px; }

img {
  margin: 10px; }

p {
  padding: 5px; }

a {
  color: inherit; }

#color-name-grid {
  display: grid;
  grid-template-columns: auto auto auto auto;
  grid-row-gap: 30px;
  grid-column-gap: 30px; }

.color-name-child {
  color: white;
  padding: 30px;
  text-align: center;
  max-width: 250px; }

#color-name-child-tomato {
  background-color: tomato; }

#color-name-child-orange {
  background-color: orange; }

#color-name-child-dodgerblue {
  background-color: dodgerblue; }

#color-name-child-mediumseagreen {
  background-color: mediumseagreen; }

#color-name-child-gray {
  background-color: gray; }

#color-name-child-slateblue {
  background-color: slateblue; }

#color-name-child-violet {
  background-color: violet; }

#color-name-child-lightgray {
  background-color: lightgray;
  color: black; }

#bg-color-grid {
  display: grid;
  grid-template-columns: 100%;
  grid-row-gap: 20px;
  margin: 20px 0px; }

.bg-color-child {
  color: white;
  border-radius: 5px;
  padding: 2px 2px; }

#bg-color-1 {
  text-align: center;
  background-color: dodgerblue; }

#bg-color-2 {
  text-align: center;
  background-color: tomato; }

.color-value-grid {
  display: grid;
  grid-template-columns: auto;
  grid-row-gap: 10px;
  grid-column-gap: 20px; }

.color-value-child, .color-value-child-a {
  color: white;
  text-align: center;
  padding: 20px;
  background-color: tomato; }

.color-value-child-a {
  background-color: rgba(255, 99, 71, 0.5); }

#rgb-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  grid-row-gap: 20px;
  margin-left: 50px;
  margin-right: 50px; }

#rgb-display {
  grid-row-start: 1;
  grid-column-start: 2;
  grid-column-end: 5;
  text-align: center;
  max-width: 100%;
  background-color: blue;
  align-self: center;
  padding: 20px;
  font-weight: 600; }

#rgb-r, #rgb-g, #rgb-b {
  display: flex;
  flex-direction: column;
  grid-row-start: 2;
  max-width: 100%;
  align-items: center; }

#rgb-r {
  grid-column-start: 1;
  grid-column-end: 3; }

#rgb-g {
  grid-column-start: 3;
  grid-column-end: 4; }

#rgb-b {
  grid-column-start: 4;
  grid-column-end: 6; }

.rgb-example-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 20px; }
  .rgb-example-grid .rgb-example-child {
    padding: 20px;
    text-align: center;
    font-weight: 600; }