css:
input[type="checkbox"]{appearance: none; -webkit-appearance: none;outline: none;display:none}
label{width:100px;height:100px;display:inline-block;cursor:pointer;}
label input[type="checkbox"] + span{width:20px;height:20px;display:inline-block;background:url(http://sandbox.runjs.cn/uploads/rs/216/0y89gzo2/checkbox_01.gif) no-repeat;background-position:0 0;}
label input[type="checkbox"]:checked + span{background-position:0 -21px}
html:
<label><input type = "checkbox"><span></span></label>
