input[type=checkbox].css-checkbox {
    position:absolute; z-index:-1000; left:-1000px; overflow: hidden; clip: rect(0 0 0 0); height:1px; width:1px; margin:-1px; padding:0; border:0;
}

input[type=checkbox].css-checkbox + label.css-label {
    padding-left:35px;
    height:20px; 
    display:inline-block;
    line-height:20px;
    background-repeat:no-repeat;
    background-position: 0 0;
    font-size:14px;
    font-weight: 200;
    vertical-align:middle;
    cursor:pointer;

}

input[type=checkbox].css-checkbox:checked + label.css-label {
    background-position: 0 -20px;
}
label.css-label {
background-image:url(http://csscheckbox.com/checkboxes/u/csscheckbox_f60067e68146be412873f96f1d2458cd.png);
background-size: 20px 40px;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}