クリックしたら要素を回したり止めたりしよう

解答ソースコード

              <input type="checkbox" id="box" name="head">
<label for="box"><div></div></label>
¥HTML¥
            

              @keyframes spinbox {
  0% {
    transform:rotate(0deg); 
  }
  100% {
    transform:rotate(180deg); 
  }
}
input[type="checkbox"]  ~ label > div {
  width: 200px;
  height: 100px;
  border: 1px solid #000;
  background-color: red;
  animation: spinbox 1s linear 0s infinite forwards paused;
  margin-top: 100px;
}
input[type="checkbox"]:checked  ~ label > div {
  width: 200px;
  height: 100px;
  border: 1px solid #000;
  background-color: red;
  animation: spinbox 1s linear 0s infinite forwards;
}
input {
  display: none;
}
¥CSS¥