Develop Reference

Find any keyword entered into Search input on lengthy HTML page?

I looked online for a few references to my question, but having a hard time understanding what it is I truly need to do to make this work.
For example, if I want to search for the keyword "necessary" or any keyword I need to find, how would I go about finding that keyword using a Input search field throughout all the text in the page and go down to that keyword?
Would this require some JavaScript?
For reference, I provided some basic HTML code i'm trying to filter through and the word necessary is toward the bottom...
Any ideas would help!
<div class="course-title">
<h4>Difficult Conversations: Situation, Behavior, Impact</h4>
</div>
<div class="course-info">
<p><span>Course Description:</span> The Situation/Behavior/Impact model is perfect to prepare feedback statements when it’s critical to give clear, actionable feedback. Learn more about the model, how to use, and how to manage through complicated conversations.
</p>
<p><span>Subject:</span> Personal Growth</p>
<p><span>Provider:</span>L&D</p>
<p><span>Timing:</span> 1.5 Hours</p>
<p><span>Formats Offered:</span> Virtual</p>
<p><span>Link:</span> </p>
</div>
<br><br>
<div class="course-title">
<h4>Leading Change</h4>
</div>
<div class="course-info">
<p><span>Course Description:</span> Change is a constant in innovative organizations, so it’s imperative to handle it well and adapt. In this workshop, discover what happens neurologically when change is experienced, and learn easy techniques to reduce resistance and increase inspiration, commitment, and decisive action.
</p>
<p><span>Course Type:</span> Leadership Development</p>
<p><span>Provider:</span> LL</p>
<p><span>Timing:</span> 2 Hours</p>
<p><span>Formats Offered:</span> Virtual</p>
<p><span>Accessing:</span> </p>
</div>
<br><br>
<div class="course-title">
<h4>Managing Difficult Conversations: Issue Clearing</h4>
</div>
<div class="course-info">
<p><span>Course Description:</span> Difficult conversations are a common and necessary aspect in growing a strong, connected team with a high trust climate. In this session, we'll explore Issue Clearing, a tool to help guide conversations towards open, clear, vulnerable communication.
</p>
<p><span>Course Type:</span> Leadership Development</p>
<p><span>Provider:</span> L&D</p>
<p><span>Timing:</span> 2 Hours</p>
<p><span>Formats Offered:</span> Virtual</p>
<p><span>Accessing:</span> </p>
</div>

You could give each section its' own anchor. for example by changing each h4 (such as this one):
<div class="course-title">
<h4>Managing Difficult Conversations: Issue Clearing</h4>
</div>
to:
<a name="courseid123456">
<div class="course-title">
<h4>Managing Difficult Conversations: Issue Clearing</h4>
</div>
</a>
then you can jump to that location either with hyperlinks () or with javascript code such as window.location = '#courseid123456';

How to insert HTML between 2nd and 3rd paragraph tags in a class?

I have this bit of HTML. I want to insert in the div class content between 2nd and 3rd paragraph tag. I saw .insertAfter() and .insertBefore(). How to do this in plain vanilla JS?
<div class="content">
<div class="lead-image"><img src="/rf/Image-621x414/LiveMint/Period2/2017/10/13/Photos/Processed/bhart-kvpG--621x414#LiveMint.JPG" alt="Vodafone-Idea combine is ahead by a sizeable margin. Photo: Pradeep Gaur/Mint" class="img-responsive">
<div class="img-caption">In a few quarters, Airtel will end up as a clear market leader in terms of revenue market share, even though currently, the Vodafone-Idea combine is ahead by a sizeable margin. Photo: Pradeep Gaur/Mint</div>
</div>
<p xmlns:fn="http://www.w3.org/2005/xpath-functions" class="A5l">After Telenor ASA decided to hand over its India mobile business to Bharti Airtel Ltd for free, the Tata group has done the same. In the June quarter, revenues of these companies together stood at Rs3,202 crore, or nearly $2 billion on an annualized basis. Sure, since Tata’s non-mobile businesses, such as broadband, are being retained, the actual revenue that could potentially accrue to Airtel could be lower.</p>
<p>Still, even using conservative estimates, the Tatas are transferring at least a $1 billion business to Airtel for free. Telenor’s annualized revenues stood at $606 million in the June quarter. </p>
<p>In fact, the Tatas have gone a step further compared to Telenor. For the latter, Airtel agreed to take over outstanding spectrum payments, other operational contracts such as tower leases and employees. But the deal with the Tatas is even sweeter; it will take over only a portion of outstanding spectrum payments and it’s not clear whether operational contracts and employees are part of the deal.</p>
<p>The simple reason Airtel is able to strike such deals is that it is the only buyer in the market. Vodafone India Ltd and Idea Cellular Ltd have enough on their plate with their own merger, and the last thing they would want to engage with is the integration of another telco. Reliance Jio Infocomm Ltd, after having spent Rs2 trillion already in building its network, appears self-sufficient. Of course, these are also distress sales, given the high-cash burn at these companies. For sellers, therefore, one big hope is if Airtel evinces some interest. The only other option is to wind down the business, which entails far higher costs. </p>
<p>A Tata Sons executive told <i>Mint</i> the cost of winding down the business would have been about Rs8,000 crore higher than the current arrangement. Knowing this well, Airtel has stayed shy of rushing into deals, and has waited till sellers agree to its terms.</p>
<div class="mobile-ad">
<div id="div-gpt-ad-1492578481854-0" style="height: 250px; width: 300px; display: none;">
<script>
googletag.cmd.push(function() {
googletag.display('div-gpt-ad-1492578481854-0');
});
</script>
<div id="google_ads_iframe_/3106570/LM_WAP_Story_300x250_Top_0__container__" style="border: 0pt none;">
<iframe id="google_ads_iframe_/3106570/LM_WAP_Story_300x250_Top_0" title="3rd party ad content" name="google_ads_iframe_/3106570/LM_WAP_Story_300x250_Top_0" width="300" height="250" scrolling="no" marginwidth="0" marginheight="0" frameborder="0" srcdoc="" style="border: 0px; vertical-align: bottom;"></iframe>
</div>
</div>
</div>
<p></p>
<p>This puts it in an enviable position; such takeovers help grow market share as well as help plug gaps in its spectrum portfolio at a fairly low cost. In addition, with Vodafone and Idea busy with the merger process, and given the uncertainty among their employees, Airtel can grab market share from its large rivals as well.</p>
<p></p>
<div id="chart-box">
<img class="img-responsive" src="/r/LiveMint/Period2/2017/10/13/Photos/Processed/w_m2m_infratel-kvpG--414x621#LiveMint.jpg" title="">
<div class="zoom_icon"><a class="zoom-icon" href="/r/LiveMint/Period2/2017/10/13/Photos/Processed/w_m2m_infratel-kvpG--414x621#LiveMint.jpg" title="">Click here for enlarge</a></div>
</div>
<link href="/r/PortalConfig/LiveMint/static_content/css/v2/lightbox.css" type="text/css" rel="stylesheet">
<p></p>
<p>However, when things improve—hopefully with Jio’s approval for higher tariffs—Airtel can be expected to be in a fairly strong position as it gobbles up small telcos one after another and also gains share from other companies.</p>
<div class="story-meta"><span>First Published: </span>Fri, Oct 13 2017. 07 16 AM IST
<div class="story-tags">Topics: Airtel Tata Teleservices Airtel Tata Tele acquisition Airtel acquisitions Telenor ASA </div>
</div>
</div>
I am trying to do it in the best possible way. The class name is unique and I can then iterate through. What is the right way?

var myfirstcontent = document.getElementsByClassName('content')[0];
//find paragraphs
var ps = myfirstcontent.getElementsByTagName("p");
// Create a new, plain <div> element
var newdiv1 = document.createElement("div");
// put content etc in the div here...
// Get a reference to the paragraph we want to insert the new div after
var p2 = ps[1];
// Get a reference to the parent element
var parent = p2.parentNode;
// insert after
parent.insertBefore(newdiv1 , p2.nextSibling);
Note if there is no nextSibling it just gets appended to the parent node at the end as that returns null.

How about this?
var div = document.querySelector('div.content');
var thirdP = document.querySelectorAll('div.content > p')[2];
var newDiv = document.createElement('div');
newDiv.innerHTML = '***';
div.insertBefore(newDiv, thirdP);

Javascript reveal text animations?

I am a bit stumped on this. I just started working with javascript and I am having a little trouble getting this to work. Basically I have links within paragraphs that expand when clicked using javascript. However, I would like to add an effect to this expansion such as fading or scrolling. Previously, I have only added effects to div classes but this isn't a div. Anyway here is my code thanks!
Javascript:
function reveal(a){
var e=document.getElementById(a);
if(!e) return true;
if(e.style.display=="none"){
e.style.display="inline"
} else {
e.style.display="none"
}
return true;
}
html:
<title>Project Star in a Jar</title>
<link rel="stylesheet" type="text/css" href="/../default.css"/>
<script type="text/javascript" src="/jscript/function.js"></script>
</head>
<link rel="shortcut icon" href= "/../images/favicon.png"/>
<link rel="icon" href="/../images/favicon.png" type="image/x-icon">
<body>
<div class="wrapOverall">
<div class="header">
<div class="logo">
<img src="/../images/starJar.png" href="index.php" style="width:100px;height:100px">
<div class="moto">
<h1> Project Star in a Jar</h1>
</div>
</div>
<div class="nav_main">
<ul>
<li>Home</li>
<li>Tutorial</li>
<li>Videos</li>
<li>Other Resources</li>
</ul>
</div>
</div>
<div class="sideContent">
<div class="sideTitle">
<h3>Table of Contents</h3>
</div>
<div class="sideLinks">
<ul>
<li>i. Introduction</li>
<li>1. What is Fusion?</li>
<li>2. Hazards and Safety</li>
<li>3. Vacuum Chamber</li>
<li>4. Inner Grid</li>
<li>5. Outer Grid</li>
<li>6. Vacuum System</li>
<li>7. Electrical System</li>
<li>8. Achieving Fusion </li>
<li>9. Putting it all Together</li>
<li>10. Great, Now What?</li>
</ul>
</div>
</div>
<div class="Content">
<div class="contentTitle">
<h1>Star in a Jar - A How-To Guide</h1>
<h2>Introduction</h3>
</div>
<div class="contentText">
<!--Paragraph One-->
<p>
Why would anyone want to build a <q>star in a jar</q>? Is it because they want to feel like a mad scientist? Because they want to impress their friends or peers? Although these are all possible reasons, the main reason why people have been building and researching these incredible devices is because quite frankly, we are running out of energy solutions. If we don't have a working solution in the next 20-50 years, we either won't have energy or the little energy we produce will be outrageously expensive. The energy that we consume is almost directly matched with the human exponential growth model and we simply cannot be sustained with conventional energy production methods. The more people that are aware or interested in this technology, the faster we will be able to develop fusion based energy solutions.
</p>
<!--Paragraph Two-->
<p>
Since this is an advanced topic and this writing will use highly technical lexis, I will write in such a way as to target multiple audiences. I understand that some of you reading this are doing so because you are planning on building or already built a fusion device and are looking for more useful information to further develop and experiment with your device. On the other hand, some of you may be reading this from a purely academic standpoint and have nor the intention or means to build such a device. That is perfectly fine! If the former, and you are familiar with the terms and already have an understanding of the concepts in this text, then you can read it without expanding the text for a better tailored experience. However, if the latter, and you are unfamiliar with the terms of this field, I have developed the writing on the site to be dynamic and interactive. Every word or phrase you see that is in orange, can be expanded into an explanation when clicked. Try it out with the following phrase!
What is Tritium?.
<a id="para1" style="display:none">
(Tritium is a radioactive isotope of hydrogen with one proton and two neutrons)
</a>
I implemented this feature because I realize that this writing will be read by many different audiences with their own unique purposes for reading. As the writer, I strive to make this writing dynamic to fit their needs independently without compromising convince or enjoyment. Although the main purpose of this tutorial is to give a detailed analysis of the device and its workings in a tutorial based format, it is also to educate and address the needs and wants of the reader and hopefully, in the process raise awareness to a phenomenal technology that will change the world.
</p>
<!--Content Image-->
<div class="contentImage">
<img src="/../images/intro1.jpg" style="width:300px;height:300px">
</div>
<!--Paragraph Three-->
<p>
This tutorial is not going over any new exotic technology. The particular machine described uses very basic principles of classical physics and has been around since the mid 60's. Depending on the materials you have on hand, your results will vary. I can guarantee at the bare minimum, you will have a working demo fusor if you follow this tutorial. A demo fusor essentially does everything a normal fusor does, with the exception that no fusion of atoms is occurring. It is called demo because it is typically much easier to build and operate safely and is used to demonstrate the operation of a fusor. The picture on the right is of a preliminary run of my first demo fusor.
</p>
<!--Paragraph Four-->
<p>
<b>WARNING:</b>
</p>
<!--Paragraph Five-->
<p>
Before we begin the tutorial, I would like to point out that although this machine is of a very simple design and can be built from essentially junk, does NOT mean it is by any means safe. The minimum operating voltage for most demo fusors are 2-6kv and 10-30kv for fusors achieving fusion reactions. High voltages are extremely dangerous and the high voltage supplies discussed can and most likely will kill you if an accident occurs or you misuse them. The Hazards and Safety section will go into more detail about the all possible hazards presented and how to deal with them accordingly.
</p>
<!--Paragraph Six-->
<p>
Understand that this is a dangerous experiment that if done improperly, has the potential to harm or kill you or others who do not follow proper safety measures. I do not take any responsibility for death, injury, property damage, potential outrageous energy bills, blown breakers, glowing in the dark, fecaled pants, becoming a green hulk when angry, or failure of experimenter to hold sufficient health, liability or property insurance.
</p>
</div>
<div class="contentSelector">
>>
</div>
</div>
</div>
<div class="footer">
<a>
Copyright # 2014 Project Star In A Jar. All Rights Reserved.<br>
Website and Content Created by Joshua Hess <a target="blank" href="http://www.youtube.com/s28400"><u>(s28400)</u></a>
</a>
</div>
</body>

Your question isn't entirely clear... but it seems like you're just asking how to do animations in JavaScript.
Here's some code you can use for fading in (taken from http://youmightnotneedjquery.com/):
function fadeIn(el) {
el.style.opacity = 0;
var last = +new Date();
var tick = function() {
el.style.opacity = +el.style.opacity + (new Date() - last) / 400;
last = +new Date();
if (+el.style.opacity < 1) {
(window.requestAnimationFrame && requestAnimationFrame(tick)) || setTimeout(tick, 16)
}
};
tick();
}
fadeIn(el);
or, if you are using jQuery (not sure if the tag was listed correctly or not), a similar function has already been made for fading in the library:
$(el).fadeIn();
Do note that a fade in in this way requires you setting opacity values (not display values).
You also mentioned in your question "Previously, I have only added effects to div classes but this isn't a div". Classes are just one way to implement CSS styles, if you've used CSS animations before, the same CSS animation will work for nearly any element (there are cases where they won't), you just have to give that element a class with the animation you want. As this wasn't asking for CSS in specific, you can take a look here for more information: https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Using_CSS_animations or at this question for fade in specifically: Using CSS for fade-in effect on page load

How to execute scrollTop after a slideUp

I'm having trouble with a post feed.
Basically, it's a list of banners and titles, with content divs hidden in the CSS. When you click on a title, the relevant content div slides down. At the same time, any other open divs slide up, so that you can only view one article at a time. The page then scrollTops to the top of the relevant banner div.
Here's a jsFiddle: http://jsfiddle.net/JGuilford/VzVCD/
The HTML:
<!-- Content area -->
<div id="content" class="site-content" role="main">
<!-- First Post -->
<!-- Header -->
<article id="post1" class="standard post">
<header class="entry-header">
<div class="entry-thumbnail">
<div class="entry-thumbnail-text">
<h1 class="entry-title-thumbnail-active">
Post1
</h1>
</div>
<!-- .entry-thumbnail-text -->
<img width="750" height="270" src="http://twentythirteendemo.wordpress.com/wp-content/themes/pub/twentythirteen/images/headers/circle.png" alt="banner img">
</div>
<!-- .entry-thumbnail -->
</header>
<!-- .entry-header -->
<!-- Article Content -->
<div class="entry-content-thumbnail" id="content-1">
<p>See the child. He is pale and thin, he wears a thin and ragged linen shirt. He stokes the scullery fire. Outside lie dark turned fields with rags of snow and darker woods beyond that harbour yet a few last wolves. His folks are known for hewers of wood and drawers of water but in truth his father has been a schoolmaster. He lies in drink, he quotes from poets whose names are now lost. The boy crouches by the fire and watches him.</p>
<p>Night of your birth. Thirty-three. The Leonids they were called. God how the stars did fall. I looked for blackness, the holes in the heavens. The Dipper stove.</p>
<p>The mother dead these fourteen years did incubate in her own bosom the creature who would carry her off. The father never speaks her name, the child does not know it. He has a sister in this world that he will not see again. He watches, pale and unwashed. He can neither read nor write and in him broods already a taste for mindless violence. All history present in that visage, the child the father of the man.</p>
<p>At fourteen he runs away. He will not see again the freezing kitchenhouse in the predawn dark. The firewood, the washpots. He wanders west as far as Memphis, a solitary migrant upon that flat and pastoral landscape. Blacks in the fields, lank and stooped, their fingers spiderlike among the bolls of cotton. A shadowed agony in the garden. Against the sun’s declining figures moving in the slower dusk across a paper skyline. A lone dark husbandman pursuing mule and harrow down the rainblown bottomland toward night.</p>
</div>
</article>
<!-- Second Post -->
<!-- Header -->
<article id="post2" class="standard post">
<header class="entry-header">
<div class="entry-thumbnail">
<div class="entry-thumbnail-text">
<h1 class="entry-title-thumbnail-active">
Post2
</h1>
</div>
<!-- .entry-thumbnail-text -->
<img width="750" height="270" src="http://twentythirteendemo.wordpress.com/wp-content/themes/pub/twentythirteen/images/headers/circle.png" alt="banner img">
</div>
<!-- .entry-thumbnail -->
</header>
<!-- .entry-header -->
<!-- Article Content -->
<div class="entry-content-thumbnail" id="content-2">
<p>See the child. He is pale and thin, he wears a thin and ragged linen shirt. He stokes the scullery fire. Outside lie dark turned fields with rags of snow and darker woods beyond that harbour yet a few last wolves. His folks are known for hewers of wood and drawers of water but in truth his father has been a schoolmaster. He lies in drink, he quotes from poets whose names are now lost. The boy crouches by the fire and watches him.</p>
<p>Night of your birth. Thirty-three. The Leonids they were called. God how the stars did fall. I looked for blackness, the holes in the heavens. The Dipper stove.</p>
<p>The mother dead these fourteen years did incubate in her own bosom the creature who would carry her off. The father never speaks her name, the child does not know it. He has a sister in this world that he will not see again. He watches, pale and unwashed. He can neither read nor write and in him broods already a taste for mindless violence. All history present in that visage, the child the father of the man.</p>
<p>At fourteen he runs away. He will not see again the freezing kitchenhouse in the predawn dark. The firewood, the washpots. He wanders west as far as Memphis, a solitary migrant upon that flat and pastoral landscape. Blacks in the fields, lank and stooped, their fingers spiderlike among the bolls of cotton. A shadowed agony in the garden. Against the sun’s declining figures moving in the slower dusk across a paper skyline. A lone dark husbandman pursuing mule and harrow down the rainblown bottomland toward night.</p>
</div>
</article>
<!-- Third Post -->
<!-- Header -->
<article id="post3" class="standard post">
<header class="entry-header">
<div class="entry-thumbnail">
<div class="entry-thumbnail-text">
<h1 class="entry-title-thumbnail-active">
Post3
</h1>
</div>
<!-- .entry-thumbnail-text -->
<img width="750" height="270" src="http://twentythirteendemo.wordpress.com/wp-content/themes/pub/twentythirteen/images/headers/circle.png" alt="banner img">
</div>
<!-- .entry-thumbnail -->
</header>
<!-- .entry-header -->
<!-- Article Content -->
<div class="entry-content-thumbnail" id="content-3">
<p>See the child. He is pale and thin, he wears a thin and ragged linen shirt. He stokes the scullery fire. Outside lie dark turned fields with rags of snow and darker woods beyond that harbour yet a few last wolves. His folks are known for hewers of wood and drawers of water but in truth his father has been a schoolmaster. He lies in drink, he quotes from poets whose names are now lost. The boy crouches by the fire and watches him.</p>
<p>Night of your birth. Thirty-three. The Leonids they were called. God how the stars did fall. I looked for blackness, the holes in the heavens. The Dipper stove.</p>
<p>The mother dead these fourteen years did incubate in her own bosom the creature who would carry her off. The father never speaks her name, the child does not know it. He has a sister in this world that he will not see again. He watches, pale and unwashed. He can neither read nor write and in him broods already a taste for mindless violence. All history present in that visage, the child the father of the man.</p>
<p>At fourteen he runs away. He will not see again the freezing kitchenhouse in the predawn dark. The firewood, the washpots. He wanders west as far as Memphis, a solitary migrant upon that flat and pastoral landscape. Blacks in the fields, lank and stooped, their fingers spiderlike among the bolls of cotton. A shadowed agony in the garden. Against the sun’s declining figures moving in the slower dusk across a paper skyline. A lone dark husbandman pursuing mule and harrow down the rainblown bottomland toward night.</p>
</div>
</article>
The JQuery:
$(document).ready(function () {
$(".entry-title-thumbnail-active").click(function () {
$(this).closest('.site-content').find('.entry-content-thumbnail').not($(this).closest('article').find('.entry-content-thumbnail')).slideUp('slow');
$(this).closest('article').find('.entry-content-thumbnail').slideToggle(
'slow', 'swing', $('html,body').animate({
scrollTop: $(this).offset().top
}, 'slow'));
return false;
});
});
The problem is that, if an article is already open above the one the user is clicking open, then when it closes, the clicked title scrolls up and out of view. Basically, I can't figure out how to get scrollTop to use the final position of the clicked .entry-title-thumbnail-active rather than its initial position. To see what I mean, open the jsFiddle and click on Post 2, then Post 3. The article for Post 3 will expand, the article for Post 2 will collapse, but the window will try to scroll to the title for Post 3's initial position, rather than its position after Post 2 collapses.
Does anyone know how to fix this?

The complete method on .slideToggle() is a function. See the slideToggle docs
So it should be:
$(".entry-title-thumbnail-active").click(function () {
$(this).closest('.site-content').find('.entry-content-thumbnail').not($(this).closest('article').find('.entry-content-thumbnail')).slideUp('slow');
$(this).closest('article').find('.entry-content-thumbnail').slideToggle(
'slow', function () {
$('html,body').animate({
scrollTop: $(this).offset().top
}, 'slow')
});
return false;
});
You also don't need to set 'swing' because it's already the default applied easing.
Check this jsfiddle.

Move an element from div to anther - not working

I am trying to MOVE Grid3 to Grid2 - and I am using This code, but it's not working, what I am doing wrong?
Also is there anyway to move half of the Div's in Grid3 to Grid1, and the other half to Grid2?
JS
$("#grid3").appendTo("#grid2");
HTML
<div class="wrapperA1">
<div class="content">
<div id="home-sectionD">
<div id="grid1"><!--Gird 1-->
<article class="testimonial">
<img alt="Neal Kilburne​​" src="assets/images/neal kilburne​​.jpg"/>
<div>
<h3>Neal Kilburne​​</h3>
<p>CEO, iTEQ Global www.iteqglobal.com</p>
<br>
<p>“Loai is a great asset to our company and provides us with great and quick responses,Such a talented designer which we have the honour of working with.” 2011 - 2012</p>
</div>
</article>
<article class="testimonial">
<div>
<h3>Amanda Chui​</h3>
<p>Owner of www.beautyroom.ca</p>
<br>
<p>Just what my website needed! When I had finished my website, I felt that it was missing something,so I enlisted in the help of Loai. He did a great job of giving my website the professional and polished look it needed without having me wait for days on end. Thanks, Loai!” June 23, 2012</p>
</div>
</article>
</div><div id="grid2"><!--Gird 2-->
<article class="testimonial">
<img alt="Geeta Martinez" src="assets/images/geeta martinez.jpg"/>
<div>
<h3>Geeta Martinez</h3>
<p>Lawyer & Business Consultant</p>
<br>
<p>"Leo did a great job! He designed and put together several websites for me in less than a week. He was incredibly patient and flexible throughout the whole process, and took a lot of the stress out of the whole situation for me. He is a really nice guy to work with - I really appreciated his approach! I would definitely recommend working with him". July 14, 2013</p>
</div>
</article>
<article class="testimonial">
<div>
<h3>Richard Jackson</h3>
<p><em>Photographer www.rjpstudios.co.uk​</em></p>
<br>
<p>“Loai designed my website last year on wix though I could have done it myself loai added a proffesional touch to the design which is so important in creating the best first impeson.” 2013</p>
</div>
</article>
</div><div id="grid3"><!--Gird 3-->
<article class="testimonial">
<img alt="Glen Eric Huysamer" src="assets/images/glen eric huysamer.jpg"/>
<div>
<h3>Glen Eric Huysamer​</h3>
<p>Specialist Service Provider.</p>
<br>
<p>“I would like to take this opportunity to warn people who might consider using Loai Design Studio. You will have to buckle up and strap yourself in as this young designer and associates take you through the process of creating your design needs. I was pleasantly surprised from start to finish, and can say that even though Loai took control of the creative process the end result felt like it was mine. You can not go wrong with this young lad, go ahead surprise yourself”. December 30, 2011</p>
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</article>
<article class="testimonial">
<div>
<h3>Ciprian Filip​</h3>
<p>Founder of Pontomat.ro​</p>
<br>
<p>“Worked with Loai on designing exposure of our social media presence on Facebook for our E-commerce initiative. He is very passionate and expert in his field of work, coming with breakthrough innovations in real time. He is able to manage an end to end social media exposure with accent on clarity, effectiveness and innovation. His working capabilities are awesome and I am sure that he will make good contribution to any project he works on.” August 4, 2011</p>
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</article>
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Seems to be working for me (http://jsfiddle.net/k2NMD/9/).
You may be calling append too early, before the browser has actually processed all of the html. Try wrap your append function in a $(document).ready() function.
$(document).ready(function () {
$("#grid3").appendTo("#grid2");
});

The move does work (if you are running the code after the document has loaded such as in $(document).ready() event). Check in the developer console for the elements (if you are using Chrome) to see that #grid3 is actually inside #grid2 like so
<div id="grid2">...
<article...>
<article...>
<div id="grid3">...
</div>
If you would like to move the contents of grid3 inside grid2, then you have to get the articles using $('#grid3').find('article').appendTo('#grid2') and that will remove the articles from grid3 and insert it into grid2. Moving parts of it can be accomplished by separating the article and insert one into grid1 and the other into grid2.