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element is position absolute but must still relative in parentDiv to make it like slider

So my problem here is that I want to make a slider in parentDiv but I make a simple example which is when I click the item it will become the main screen of the screen border...but in opposite when I click it over again it will turn back.. I'm using gsap but you don't have to worried about the gsap functionality because I just used it to make it simplier my animation but the logics of positioning does matter to me.
Here's the codepen.
https://codepen.io/yowyow3322/pen/GRQVevr
Also I put something here in the div just to make it more clarify.
<!-- <div class="parentDiv"> -->
<div class="stapler stapler1"></div>
<div class="stapler stapler2"></div>
<div class="stapler stapler3"></div>
<!-- </div> -->
So what's my point here? I want to make the stapler slider but that will be absolutely impossible because parentDiv is a position relative so that it will not off bounds the items when I will create it for sliding. It kind of seems impossible to me but I saw it somewhere in Pinterest which close to the idea of it.

As each div will be a layer on it's own, You need to manage that each layer should has a z-index more than the last layer by one. you can do that by JS

Center this text inside this special image slider

I need to get the text inside these images.
The overview of the problem -> I basically need to have text inside each image.
Link to codepen --> https://codepen.io/martispyc/pen/KKmjWZj?editors=1100
Appreciated if the slider would slide these kinds of divs, not the images and text, but whatever works!
<div class="slider__images--container">
<img src="" alt="" class="slider__images--container-img">
<h3 class="slider__images--container-h3">Example</h3>
</div>

So, for everyone wondering, I solved it myself! I did put text inside and I am proud of it. The basic way I did it was as follows:
I added the same amount of text blocks as my slider has images. After that,
I coded some javascript so the nth text block as the nth image has the class .active
2.5 text had absolute positioning so I can move it around and `a z-index of >1
.active == opacity 1, .unactive == opacity 0.
And then I made it so every time it slides it checks which one has to be active (text block) and add the class and remove active from the last one.
Added a transition and boom!
(Basic rundown of how I did it, won't share the code only because of the thrill coding it up yourself!) byebye!
PS. I won't accept my answer just so if there's someone willing to put a real answer, go for it!

css z-index changes during opacity animation

I have a very simple page, there are a few stacks of divs and each div has and image inside of it.
Each stack will fadeIn depending on the scroll position, the top stack has an object that overlaps the bottom stack and for some reason during the animation, the z-index changes.
here's the JSBIN, try clicking the fadeIn/fadeOut button and notice how the plate briefly went behind the bottom stack when it's transitioned.
http://jsbin.com/wefediti/1/
please help.

Since your jQuery.each() and therefore the fading animation will be processed synchronously, it is not possible with your approach to make them fade at the very same time.
I suggest you combine those images in the same div and fade them if it is possible for you:
DEMO

function fadePages(num) {
$(".page").animate({
opacity: num
}, 1000*(num+1));
}
do same at same time. It works.

It's a thing of positioning of your divs
I edited. All you need to do is stack your divs right and then re-edit your absolute position. But it works
EDITED CODE
Let me be more specific.
change the order of your divs liek so:
<div class="page1">
<img src="http://i.imgur.com/BleOC.jpg">
</div>
<div class="page">
<div class="bg"></div>
</div>
and that will fix you z-index problem. I made a different call for each div from the JS as well, But that was for testing purposes. I think you're fine with one call
I made the positioning edits as well HERE
But it seems like everyone is modifying it, so hurry up before someone else messes it up lol

Image sliding right to cover text then revealing new text as it slides back

I have an effect I want to achieve, but I'm having trouble thinking of exactly how I could achieve it. Here are some images that show the progression of the effect I want to achieve: http://imgur.com/a/In6IK
So essentially, I have multiple slides containing text which I want to automatically display one by one. In order to hide the current slide and show the next one, I want an image (which sits to the left of the text) to slide to the right, covering/hiding the text as it goes, and then when it slides back to its original position, the text for the next slide is shown.
So how would I go about achieving this effect?

Here is a raw idea. Maybe you can make use of :after and :before and position them so that they hide the text, making it disappear.
HTML would be something like:
<div class="main">
<div class="over"></div>
<div class="text">This is some text</div>
</div>
And for CSS look in this fiddle http://jsfiddle.net/Zs2MU/
Maybe it will help you in your situation.
UPD Here is updated solution which supports multiline text http://jsfiddle.net/Zs2MU/2/

Content box on image hover?

I have a bunch of images in a gallery on a new website im building and Im wanting to have content displayed when a user hovers over an image.
For example if a user hovered over a picture of a car in my gallery then a low opacity content div would fade over the entire image to show text and maybe a link.
I presume this effect could be done with a bit of JS or even CSS Transitions to give the fade.
I just need to know how to make a content box appear over the image on hover, possibly at 80% opacity.
Heres an example of what I have in mind:
Thanks for the help, if anyone could point me in the right direction it would be appreciated.
I can post more information if needed.

This is somewhat simple way of implementing a hover show and hide with jquery.
Working example: http://jsfiddle.net/va2B8/2/
jQuery ( http://jquery.com/ ):
$(document).ready(function() {
$("#Invisible").hide()
$("#hoverElement").hover(
function () {
$('#Invisible').stop().fadeTo("slow", 0.33);
},
function () {
$('#Invisible').stop().fadeOut("slow");
}
);
});
html:
<p id="hoverElement">This little piggy will show the invisible div.</p>
<div id="Invisible">This is the content of invisible div.</div>
css:
#Invisible { background: #222; color: #fff; }
Edit: I changed url for the working example cause i forgot to fade out on mouse out.
Edit2: Changed url again and changed the code cause i had some extra code there.. plus i thought that i might as well add those two .stop() in there so that it stops the animation If the mouse over or mouse out occurs while animation is going on.
( Without the stops one could hover in and out several times and then when he would stop, the animation would still keep going till it has done each animation as many times as he triggered it. You can test that in here http://jsfiddle.net/va2B8/1/ )

You can start using this fiddle :
http://jsfiddle.net/Christophe/2RN6E/3/
1 div containing image and span like :
<div class="image-hover">
<img src="" />
<span class="desc">text to be displayed when imae hover</span>
</div>
Update
All can be done with CSS...
http://jsfiddle.net/Christophe/2RN6E/4/

Here's an easy jQuery plugin you can implement: http://file.urin.take-uma.net/jquery.balloon.js-Demo.html
It works like this:
$(function() {
$('img').balloon(options);
});
This jQuery applied the balloon function to all images on the page. Here's your HTML:
<img src="example.png" alt="Here's your caption." />
The text in the balloon is going to be whatever is in the alt attribute for images and whatever is in the title attribute for other tags.

I've just done this:
http://twostepmedia.co.uk
It uses hoverintent jquery plugin so there is a delay of 250ms after the user hovers over to avoid erratic hover behaviour.