Nguyễn Hoàng Đạt em thêm code dưới đây vào trước thẻ </body> nhé ❤️
<script type="text/javascript" src="https://sites.google.com/site/bituotblog/disable-copy.js"></script>
<style>
body {
-moz-user-select: none !important;
-webkit-touch-callout: none!important;
-webkit-user-select: none!important;
-khtml-user-select: none!important;
-moz-user-select: none!important;
-ms-user-select: none!important;
user-select: none!important;
}
</style>
