#sittingcat {
  cursor: pointer;
}

/*https://stackoverflow.com/questions/6813699/how-to-change-an-image-on-click-using-css-alone*/
input[type="checkbox"] {
    content: url("https://64.media.tumblr.com/a0285cf14e3f70869c5beeb1f75daf81/tumblr_p8ao4iSUF81umhm4zo1_540.png");
    display: block;
}
input[type="checkbox"]:checked {
    content: url("https://64.media.tumblr.com/fe381a1c75ce65213f506c507485bb90/tumblr_o00t6hhIIX1qd186ho1_r1_540.png");
}
.native-hidden {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.hiddenwin{
  display: none;
}

input[type="checkbox"]:focus + .hiddenwin{
  display:block;
  text-align: center;
}