*{
  box-sizing: border-box;
}
body{
  font-family: Arial, Tahoma, sans-serif;
}
.control-buttons,
.play-again{
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background-color: rgba(3, 169, 244, 0.9);
}
.play-again{
  display: none;
}
.play-again.show{
  display: block;
}
.control-buttons span,
.play-again span {
  position: absolute;
  left: 50%;
  top: 50%;
  background-color: #F44336;
  color: #FFF;
  padding: 15px 25px;
  font-size: 30px;
  text-align: center;
  border-radius: 6px;
  cursor: pointer;
  transform: translate(-50% , -50%);
  -webkit-transform: translate(-50% , -50%);
  -moz-transform: translate(-50% , -50%);
  -ms-transform: translate(-50% , -50%);
  -o-transform: translate(-50% , -50%);
}
.info-container {
  width: 90%;
  margin: 20px auto 0;
  background-color: #F6F6F6;
  padding: 20px;
  font-size: 24px;
  overflow: hidden;
  border: 2px solid #2196f3;
  
  @media screen and (max-width:765px) {
    font-size: 14px;
  }
}
.info-container .name {
  float: left;
  width: 50%;
}
.info-container .tries {
  float: right;
  width: 50%;
  text-align: right;
}
.memory-game-blocks {
  display: flex;
  width: 100%;
  max-width: 900px;
  gap: 10px;
  flex-wrap: wrap;
  margin: 20px auto;
}
.memory-game-blocks.no-clicking {
  pointer-events: none;
}
.memory-game-blocks .game-block {
  aspect-ratio: 1 / 1;
  width: calc((100% / 5) - 8px);
  transform-style: preserve-3d;
  cursor: pointer;
  position: relative;
  transition: transform 0.5s ;
  -webkit-transition: transform 0.5s ;
  -moz-transition: transform 0.5s ;
  -ms-transition: transform 0.5s ;
  -o-transition: transform 0.5s ;
}
.memory-game-blocks .game-block .back {
  transform: rotateY(180deg);
}
.memory-game-blocks .game-block .front img ,
.memory-game-blocks .game-block .back img {
  width: 100%;
}
.memory-game-blocks .game-block .face {
  position: absolute;
  width: 100%;
  height: 100%;
  text-align: center;
  backface-visibility: hidden;
  border: 5px solid #2196F3;

  @media screen and (max-width:765px) {
    border-width: 3px;
  }
}
.memory-game-blocks .game-block.is-flipped,
.memory-game-blocks .game-block.has-match {
  transform:rotateY(180deg) ;
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
  -ms-transform: rotateY(180deg);
  -o-transform: rotateY(180deg);
  pointer-events: none; 
}