JSFiddle - React, Tailwind, and code Playground

HTML

<div class="editable">This is level'd text</div>

CSS

.editable {
    -webkit-user-modify:read-write;
    -moz-user-modify: read-write;
    user-modify: read-write;
    padding:20px;
}
.editable * {
  unset: all !important;
}

JavaScript

$('.editable').on('paste', function () {
  var element = this;
  setTimeout(function () {
		$('.editable').find('*').contents().unwrap().removeAttr( 'style' );
		$('.editable *:empty').remove();
  }, 0);
});