gamecss.css

@import url('https://fonts.googleapis.com/css?family=Roboto');

:root {
  --green: #9ff1a5;
  --yellow: #ff9292;
  --dim: 62px;
  /*вынесем сюда побольше*/
  --bgcol:  #f8f994;
}

body {
  margin: 0;
  padding: 0;
  height: 100vh;
  background-color: var(--bgcol);
}

h1, h2 {
  font-family: 'Roboto', sans-serif;
  font-weight: bold;
  color: #333;
  margin: 10px;
}

h1{
  font-size: 60px;
}

h2 {
  font-size: 37px;
}

p{
  font-family: 'Roboto', sans-serif;
  font-size: 23px;
  font-weight: 100;
  color: #333;
  margin: 10px;
}

.bold {
  font-weight: 900;
}

.center {
  position: relative;
  top: 20%;
  margin: 0;
}

.center1 {
  position: relative;
  margin: 30px;
}

.container {
  height: 100%;
  position: relative;
}

.game {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 540px;
  height: 650px;
  border-radius: 9px;
  background-color: #333;
  padding: 5px;
  display: flex;
  justify-content: start;
}

.box {
  height: 100px;
  width: 100px;
  float: left;
  margin: 0;
  padding: 0px;
  text-align: center;
  border-radius: 9px;
  border: 4px solid #333;
  background-color: #f1c97c;
  background-position: center;
  background-size: 70%;
  background-repeat: no-repeat;
}

.green {
  background-color: var(--green);
  animation-name: getIn;
  animation-duration: .3s;
  animation-timing-function: cubic bezier(0.68, -0.55, 0.265, 1.55);
}

.tree{
  background-image: url('src/tree.png');
}

.yellow {
  background-color: var(--yellow);
  animation-name: getIn1;
  animation-duration:  .3s;
  animation-timing-function: cubic bezier(0.68, -0.55, 0.265, 1.55);
}

.desert {
  background-image: url('src/desert.png');

}

.won, .loose, .init {
  z-index: 999;
  position: fixed;
  left:  0;
  right: 0;
  margin: auto;
  text-align: center;
  border:  8px solid #333;
  border-radius: 7px;
  background-color: var(--bgcol);
}

.won {
  background-color: var(--green);
  top: 100%;
  width: 600px;
  height: 300px;
}

.loose {
  background-color: var(--yellow);
  top: 100%;
  width: 600px;
  height: 300px;
}

.floating {
  position: relative;
  animation-name: floating;
  animation-iteration-count: infinite;
  animation-duration: 1.5s;
  animation-timing-function: ease-in-out;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: #333;
  margin-top: 30px;
}

.levelUp {
  animation: levelUp 2.5s ease-in-out;
  animation-delay: 2s;
}

.hidden {
  visibility: hidden;
}

.no-click {
z-index: -100;
position: absolute;
height: 100%;
width: 100%;
}

@keyframes won {
    from {top: 100%; transform: rotate(180deg);}
    to {top: 30%; transform: rotate(0deg);}
}

@keyframes loose {
    from {top: 100%; transform: rotate(180deg);}
    to {top: 30%; transform: rotate(0deg);}
}

@keyframes start {
    from {top: 30%; transform: rotate(0deg);}
    to {top: 100%; transform: rotate(180deg);}
}

@keyframes won {
    0% {top: 0px; transform: rotate(0deg);}
    25% {top: 5px; transform: rotate(3deg);}
    50% {top: -5px; transform: rotate(-3deg);}
    100% {top: 0px; transform: rotate(0deg);}
}

@keyframes loose {
    0% {top: 0px; transform: rotate(0deg);}
    25% {top: 5px; transform: rotate(3deg);}
    50% {top: -5px; transform: rotate(-3deg);}
    100% {top: 0px; transform: rotate(0deg);}
}

@keyframes getIn {
  from {background-size: 0%;}
  to {background-size: 70%;}
}

@keyframes getIn1 {
  from {background-size: 0%;}
  to {background-size: 70%;}
}

@keyframes levelUp {
  0% {opacity: 0; visibility: visible;}
  50% {opacity: 1;}
  100% {opacity: 0; visibility: hidden;}
}

@media (max-width: 500px) {
  h1 {
    font-size: 37px;
  }
  .game {
    width: 331px;
    height: 396px;
  }
  .box {
    width: var(--dim);
    height: var(--dim);
    border: 2.1px solid #333;
  }
  .won, .loose, .init {
    width: 300px;
    height: 400px;
  }

  .init{
    top: 10%;
  }
}