body,
html {
  margin: 0;
  padding: 0;
  overflow: hidden;
}

#canvas {
  width: 100%;
  height: 100%;
}

#footer {
  position: fixed;
  bottom: 0;
  padding: 20px;
  background-color: #000;
  color: rgb(133, 133, 133);
  font-family: Arial, Helvetica, sans-serif;
  text-transform: uppercase;
  font-size: 12px;
  width: 100%;
  text-align: center;
  letter-spacing: 0.5px;
}

#footer a {
  color: #fff;
  font-weight: bold;
  text-decoration: none;
}

#footer a:hover {
  color: rgb(255, 123, 145);
  font-weight: bold;
  text-decoration: none;
}

#github a {
  position: fixed;
  top: 0;
  right: 0;
  padding: 20px;
  opacity: 0.5;
}

#github a:hover {
  opacity: 1;
}

.div-only-mobile {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("../images/background-forest.gif");
  background-size: cover;
  background-position: top center;
  display: flex;
  justify-content: center;
  align-items: center;
  align-content: center;
  flex-wrap: wrap;
}

@media screen and (max-width: 1920px) {
  .div-only-mobile {
    visibility: hidden;
  }
}

@media screen and (max-width: 906px) {
  canvas {
    visibility: hidden;
  }
  .div-only-mobile {
    visibility: visible;
  }
}