* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

a {
  text-decoration: none;
}

p {
  padding-left: 1rem;
  font-size: 1.2rem;
}

nav a:active,
nav a:visited,
nav a:link {
  color: green;
}

nav a:hover {
  color: mediumvioletred;
}

nav {
  flex-direction: row;
  justify-content: flex-end;
  margin: 1rem 0 0;
}

nav a {
  font-size: 1.5rem;
  font-family: "Russo One", sans-serif;
  padding: 0 0.4rem 0 0.4rem;
  border-right: 0.2rem solid green;
}

nav a:last-child {
  border-right: none;
}

#screen {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
}

#game {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#game_background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: aqua;
}

#game_elements {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

#blue_container {
  position: absolute;
  top: 45%;
  left: 35%;
  width: 10%;
  aspect-ratio: 1/1;
}

#blue_sprite {
  width: 100%;
  height: 100%;
  background-image: url(smile_blue.svg);
  background-size: 100%;
}

#red_container {
  position: absolute;
  width: 10%;
  aspect-ratio: 1/1;
}

#red_sprite {
  width: 100%;
  height: 100%;
  background-image: url(smile_red.svg);
  background-size: 100%;
}

.pos1 {
  top: 45%;
  left: 65%;
}

.pos2 {
  top: 25%;
  left: 65%;
}

.forsvind {
  animation-name: forsvind_kf;
  animation-duration: 2s;
  animation-iteration-count: 1;
  animation-timing-function: linear;
  animation-fill-mode: both;
}

@keyframes forsvind_kf {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

.drej {
  animation-name: drej_kf;
  animation-duration: 3s;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
  animation-fill-mode: both;
}

@keyframes drej_kf {
  0% {
    transform: rotate(0);
  }

  100% {
    transform: rotate(360deg);
  }
}

.frys {
  animation-play-state: paused;
}

.flyv {
  animation-name: flyv_kf;
  animation-duration: 4s;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
  animation-fill-mode: both;
}

@keyframes flyv_kf {
  0% {
    transform: translateX(-975%);
  }

  100% {
    transform: translateX(365%);
  }
}

.fald {
  animation-name: fald_kf;
  animation-duration: 1s;
  animation-iteration-count: 1;
  animation-timing-function: linear;
  animation-fill-mode: both;
}

@keyframes fald_kf {
  0% {
  }

  100% {
    transform: translateY(121.25%);
  }
}

.hop {
  animation-name: hop_kf;
  animation-duration: 0.5s;
  animation-iteration-count: 2;
  animation-timing-function: linear;
  animation-direction: alternate;
}

@keyframes hop_kf {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-100%);
  }
}