JSFiddle - React, Tailwind, and code Playground
HTML
<form id="measure">
<div id="tip-age" style="display:none;"><iframe src="http://player.vimeo.com/video/34676931?title=0&byline=0&portrait=0&color=781E19&autoplay=0" width="300" height="171" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe></div>
<input type="text" class="show-hidden-div" id="age" />
<br /><br />
<div id="tip-age2" style="display:none;"><iframe src="http://player.vimeo.com/video/34676931?title=0&byline=0&portrait=0&color=781E19&autoplay=0" width="300" height="171" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe></div>
<input type="text" class="show-hidden-div" id="age2" />
<br><br />
<input type="submit" hidden="">
</form>
JavaScript
/*
$("#age").focusin(function() {
$("#tip-age").show();
}).focusout(function () {
$("#tip-age").hide();
});
*/
$(".show-hidden-div").click(function() {
var inputId = $(this).attr('id');
$("#tip-"+inputId+"").show();
});