.form-checkbox-input{position:relative}.form-checkbox-input:after{content:"";opacity:0;border:2px solid #fff;border-width:0 2px 2px 0;width:5px;height:9px;margin:auto;position:absolute;inset:0;transform:rotate(45deg)translate(-.5px,-.5px)}.form-checkbox-input:checked:after{opacity:1}.form-checkbox-input-large:after{width:6px;height:11px}