Superscript All Registered(®) Trademark Characters

sup-registered-marks.css

/* Style all <sup> elements */

sup {
  position: relative;
  top: -0.5em;
  font-size: 0.6em;
}

sup-registered-marks.js

// Find all ® characters and wrap them in a <sup> element -->

$('body :not(script,sup)').contents().filter(function() {
    return this.nodeType === 3;
}).replaceWith(function() {
    return this.nodeValue.replace(/[™®©]/g, '<sup>$&</sup>');
});