/* Variable */
:root {
  --primary-color: #b4e8cd;
}
* {
  box-sizing: border-box;
}

/* Tag Selectors */
body {
  font-family: "Roboto", sans-serif;
  background-color: var(--primary-color);
  font-size: 16px;
  background-image: url("https://codecraftworks.dev/web/fong7zWw8DXPMtLFlyBl/assets/pexels-alinaskazka-14730810.jpg");
  background-size: contain;
  background-repeat: round;
}
a[target="_blank"] {
  background-color: white;
}

/* ID Selectors */
#title {
  background-color: yellowgreen;
  text-decoration: none;
  border: 5px dashed white;
  margin-top: 50px;
}
#title:before,
#title:after {
  content: "🌎"
}
#headingInfo {
  background-color: #020024;
  background: linear-gradient(163deg, rgba(2, 0, 36, 1) 0%, rgba(3, 60, 51, 1) 20%, rgba(121, 97, 9, 1) 35%, rgba(6, 111, 77, 1) 56%, rgba(112, 131, 5, 1) 63%, rgba(3, 204, 37, 1) 75%, rgba(2, 207, 127, 1) 85%, rgba(0, 212, 255, 1) 100%);
}
#headingInfo .plainback {
  height: 400px;
  overflow: auto;
}

/* 
  Clearfix for fixing floats
  I don't know why it works it just does
*/
#biomes:after {
  content: "";
  display: table;
  clear: both;
}

#aquaticInfo {
  background-color: #9bf0ff;
  float: left;
  width: 50%;
}
#aquaticInfo .heading:before,
#aquaticInfo .heading:after{
  content: "🌊"
}
#forestInfo {
  background-color: #d0ff9b;
  float: left;
  width: 50%;
}
#forestInfo .heading:before,
#forestInfo .heading:after{
  content: "🌲"
}
#nasaInfo {
  background-color: #000;
  color: #fff;
}

#navLinks {
  position: sticky;
  top: 0.5em;
  z-index: 1;
}
#navLinks a:focus {
  background-color: red;
  color: white;
}
#navLinks a:link {
  color: red;
}
#navLinks a:visited {
  color: darkgreen;
}
#navLinks a:hover {
  background-color: yellowgreen;
}
#navLinks a:active {
  background-color: purple;
}

/* Class Selectors */
.heading {
  color: #ff0000;
  font-family: "Glass Antiqua", cursive;
  text-decoration: underline overline;
}
.text-center {
  text-align: center;
}
.info {
  border: 5px solid #afa37b;
  padding: 0.5em;
  margin-bottom: 1em;
  border-radius: 0.5em;
  box-shadow: 2px 2px 5px black;
}
.plainback {
  background-color: var(--primary-color);  
  padding: 0.5em;
}
.img-responsive {
  max-width: 400px;
}
.vid-responsive {
  max-width: 360px;
}
.img-center {
  display: block;
  margin: 0 auto;
}
.float-left {
  float: left;
  margin-right: 1em;
  margin-bottom: 1em;
}
.sr-only {
  position: absolute;
  left: -9999px;
  opacity: 0;
}
.sr-only:focus {
  background-color: white;
  padding: 0.5em;
  border-radius: 0.2em;
  position: static;
  opacity: 1;
  text-decoration: none;
  text-transform: uppercase;
}