#1762323. Placeholder

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.0/jquery.min.js"></script>
<script>
// Select the target node.
var target = $(".lightbox-content")[0];

// Create an observer instance.
let observer = new MutationObserver(function (mutations) {
  setPlaceHolder()
});

// Pass in the target node, as well as the observer options.
observer.observe(target, {
  attributes: true,
  childList: true,
  characterData: true,
});

function setPlaceHolder(){
    $('#name-yui_3_17_2_1_1723707660245_2943-fname-field').attr("placeholder", "First Name");
  $('#name-yui_3_17_2_1_1723707660245_2943-lname-field').attr("placeholder", "Last Name");
    $('#name-yui_3_17_2_1_1723605252710_10505-fname-field').attr("placeholder", "First Name");
  $('#name-yui_3_17_2_1_1723605252710_10505-lname-field').attr("placeholder", "Last Name");
}

</script>