form.color .color span {
  display: block;
  width: 30px;
  height: 30px;
  background-size: 30px 30px;
  background-repeat: no-repeat;
  padding: 0;
  margin: 10px 15px;
}
form.color .color_1 span {
  background-image: url(../piece/cburnett/wK.svg);
}
form.color .color_2 span {
  background-image: url(../piece/cburnett/wbK.svg);
}
form.color .color_3 span {
  background-image: url(../piece/cburnett/bK.svg);
}
#trainer .lichess_board {
  display: none;
  border: 1px solid #c0c0c0;
}
#trainer.white .white .lichess_board,
#trainer.black .black .lichess_board {
  display: block;
}
#trainer form.color {
  text-align: center;
}
#trainer.play div.lcs:hover {
  cursor: pointer;
  box-shadow: inset 0 0 10px 2px rgba(216, 85, 0, 0.9);
}
#trainer .progress_bar_container {
  margin: 10px 0 10px 0;
  width: 514px;
  height: 10px;
}
#trainer .progress_bar {
  width: 100%;
  height: 10px;
  background-color: #759900;
  box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.12) inset;
}
#trainer .next_coord {
  position: absolute;
  top: 0;
  left: 0;
  width: 460px;
  height: 514px;
  line-height: 512px;
  text-align: center;
  font-size: 150px;
  font-family: monospace;
  font-weight: bold;
  text-transform: uppercase;
  opacity: 1;
  pointer-events: none;
  color: #eee;
  text-shadow: 0 10px 10px #444;
  opacity: 0.8;
  transition: 0.13s;
}
#trainer .next_coord.nope {
  color: red !important;
}
#trainer #next_coord0 {
  color: #fff;
}
#trainer #next_coord1 {
  left: 150px;
  top: 50px;
  font-size: 65px;
  opacity: 0.7;
}
#trainer #next_coord2 {
  transition: none;
  left: 235px;
  top: 66px;
  font-size: 30px;
  opacity: 0.4;
}
#trainer .explanation {
  text-align: justify;
  margin-bottom: 20px;
}
#trainer .explanation li {
  list-style: inside disc;
  margin-top: 1em;
}
#trainer .start {
  font-size: 30px;
}
#trainer .score {
  position: absolute;
  top: 202px;
  left: 202px;
  font-family: monospace;
  font-size: 70px;
  display: block;
  margin: auto;
  width: 110px;
  height: 110px;
  text-align: center;
  line-height: 110px;
  color: #fff;
  background-color: #759900;
  transition: 1s;
  opacity: 1;
  box-shadow: 0 0 10px #fff;
  border-radius: 3px;
  transform: rotate(360deg);
  -webkit-transform: rotate(360deg);
  cursor: pointer;
}
#trainer.init .score {
  opacity: 0;
}
#trainer.play .score {
  opacity: 1;
  top: 550px;
  box-shadow: 0 0 1px #fff;
  border-radius: 100px;
  transform: rotate(0deg);
  -webkit-transform: rotate(0deg);
}
#trainer.wrong .progress_bar,
#trainer.wrong strong.score {
  background-color: #ac524f;
}
#trainer.play .start,
#trainer #next_coord,
#trainer.play form.color {
  display: none;
}
#trainer.play #next_coord {
  display: block;
}