label { display: inline-block }
label > input { /* HIDE RADIO */
  visibility: hidden; /* Makes input not-clickable */
  position: absolute; /* Remove input from document flow */
}
label > input + img { /* IMAGE STYLES */
  cursor:pointer;
  border:2px solid transparent;
}
label > input:checked + img { /* (RADIO CHECKED) IMAGE STYLES */
  border:2px solid #f00;
}