.checkbox-custom{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-color:#fff;border:1px solid #000;border-radius:.25rem;width:1rem;height:1rem;display:inline-block;position:relative}.checkbox-custom:checked{background-color:#fff;border-color:#000}.checkbox-custom:checked:after{content:"";position:absolute;top:.1rem;left:.1rem;width:.6rem;height:.6rem;border:solid #000;border-width:0 .2rem .2rem 0;transform:rotate(45deg);display:none}