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Set div with an ID grit template after clicking checkbox

I have a question. I have a simple chekcbox that in html looks like
<label class="container__control--checkbox">
<input type="checkbox" checked="checked" id="presentation_full_screen" class="container__control" onchange="_handleMainLayout()" />
<span>CLICK</span>
</label>
So when I click checkbox I fire up this type script:
_handleMainLayout() {
const layoutContainer = <HTMLInputElement>document.getElementById("main_layout");
const hideCommunicationCheckbox <HTMLInputElement>document.getElementById("presentation_full_screen");
if (hideCommunicationCheckbox.checked) {
layoutContainer.removeAttribute("style");
} else {
layoutContainer.style.gridTemplateColumns = "1fr";
}
}
So what id does it sets template on main layout (id: main_layout) from 1 column to 2 columns depends on this if checkbox is selected, and well it works.
But I was wondering, there are those selectors in css :checked and not(). So thing is, element with id main layout is way up DOM tree, and question can I somehow get that element using those selectors or any any other css/scss trick and toggle this grid-template-colum?
something like
.container__control :checked {
//get div with ID and set its grid-template-colum
}
.container__control :not(:checked) {
//get div with ID and set its grid-template-colum
}
Or am I left with only JS solution?

You can absolutely use CSS only to do that. The "trick" is where to insert the <input> element. Thanks to label attribute for you don't need to have <input> and <label> near one from the other. However <input> must be placed before #main_layout and on same DOM "branch" in order to use General (~) or adjacent (+) sibling combinator.
#main_layout {
height: 20px;
background-color: red;
}
:checked + #main_layout {
background-color: blue;
}
<label for="checkox">Click me</label>
<input type="checkbox" name="" id="checkox" hidden>
<div id="main_layout"></div>
no need for :not() in this case

how to hide/show element according to url parameter

i have 4 url parameters like so
http://127.0.0.1:4000/post?&id=5f04698e6114e4069099d8bf#like
http://127.0.0.1:4000/post?&id=5f04698e6114e4069099d8bf#comment
http://127.0.0.1:4000/post?&id=5f04698e6114e4069099d8bf#share
http://127.0.0.1:4000/post?&id=5f04698e6114e4069099d8bf#save
and 4 divs like
html
<div id='like' class='hide'></div>
<div id='comment' class='hide'></div>
<div id='share' class='hide'></div>
<div id='save' class='hide'></div>
and
css
.hide{
display:none;
}
how do i unhide elements when a url param is searched,
for example if i search for
http://127.0.0.1:4000/post?&id=5f04698e6114e4069099d8bf#like
the div with id='like should be now visible
what i have tried
i have tried to unhide the elements on button click, and I am successful using classList.toggle('hide')
but how do I achieve the same thing with changes in url. I would be best if the classList is set acc to the url for example when there is #like in url ,the element with id like should not contain the class hide anymore. other answers are also accepted ,thanks.

No JavaScript needed. Use the CSS :target selector like:
#like.hide:target {display:block;}
.hide {
display: none;
}
#like.hide:target,
#comment.hide:target,
#share.hide:target,
#save.hide:target {
display: block;
}
<div id='like' class='hide'>like</div>
<div id='comment' class='hide'>comment</div>
<div id='share' class='hide'>share</div>
<div id='save' class='hide'>save</div>
like
comment
share
save

A JavaScript approach would be as follow:
like.style.display = "none";
You could implement if statement to trigger that line if this is what you prefer.

JQuery show delete button on appended div

I have so far able to remove each appened elements using .remove() function of JQuery. my problem is the delete button is always showing on the first element.
I want to hide the delete button on first element and show the delete button when I append a new element.
I have set the delete button on the first element to
.delete-button:first-child{
display:none;
}
in my css but all succeeding appends do not show the delete button..
how can I do this with JQuery can it be done using CSS only?

li:first-child .delete-button { display:none }
<ul>
<li>
First <button class="delete-button">Delete</button>
</li>
<li>
Second <button class="delete-button">Delete</button>
</li>
</ul>
Making assumptions on your markup since none was provided. You can accomplish it using css.

My interpretation of your requirement: If there is only one item, do not show a delete button; if there are multiple items, show a delete button for every item.
Your attempt didn't work because .delete-button:first-child selects all elements with the delete-button class that are also the first-child of their parent element. Presumably this would be all of your buttons.
You can instead use the :only-of-type selector on the elements that contain the delete buttons, e.g., assuming they have the item class:
.item:only-of-type .delete-button { display: none; }
Or if they are li elements:
li:only-of-type .delete-button { display: none; }
That way if the item/li/whatever is the only item then its delete button will be hidden automatically, but as soon as you add additional items the delete button will be shown automatically for all items.
Here's a simple demo with a bit of JS to mock up the add and delete functionality:
$("#parent").on("click", ".delete-button", function() {
$(this).parent().remove();
});
$(".add-button").on("click", function() {
$("#parent").children().first().clone().appendTo("#parent");
});
.item:only-of-type .delete-button { display: none; }
.item { margin: 3px; padding: 2px; width: 100px; border: thin black solid; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<button class="add-button">Add Item</button>
<div id="parent">
<div class="item">
<button class="delete-button">Delete</button>
<div>An item</div>
</div>
</div>

You can try,
div ul:not(:first-child) {
.delete-button{
display:none;
}
}

You might wanna consider browser compatibility before using CSS - Browser support for CSS :first-child and :last-child
Having said that, With jQuery you can write an event handler to change css of all the child elements except the last.
Consider this example from jQuery: How to listen for DOM changes?
$("element-root").bind("DOMSubtreeModified", "CustomHandler");

Yes, Its possible by css only. I hope this snippet helps.
$(document).on('click','#AppendList', function(){
$("ul").append('<li>List <button class="delete-button">Delete</button></li>');
})
li .delete-button { display:none }
li:last-child .delete-button { display: inline-block;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
<li>
First <button class="delete-button">Delete</button>
</li>
<li>
Second <button class="delete-button">Delete</button>
</li>
</ul>
<hr>
<button type="button" id="AppendList">Add List</button>

Checkbox image label Select effect only applying on hover, not when checked

I have check boxes which I have images set for the labels, and I'm using code which applies an effect when hovered over. However when tested in a fiddle the hover effect stays when selected and doesn't show the actual check tick box, only issue with the fiddle is that this only works on the last checked not all checked.
However when I apply this to my site only the hover effect works, the effect doesn't stay on any selected and the tick boxes stay visible.
The fiddle: http://jsfiddle.net/Zgh24/1169/
The only differences between that in my code is that the DIV it is in also has classes, I'm using bootstrap.
HTML:
<div id="sites" class="navbar navbar-inverse" style="padding:5px">
<input type="checkbox" name="site" id="so" value="stackoverflow" /><label for="so"><img src="http://sstatic.net/stackoverflow/img/favicon.ico" alt="Stack Overflow" /></label>
<input type="checkbox" name="site" id="sf" value="serverfault" /><label for="sf"><img src="http://sstatic.net/serverfault/img/favicon.ico" alt="Server Fault" /></label>
<input type="checkbox" name="site" id="su" value="superuser" /><label for="su"><img src="http://sstatic.net/superuser/img/favicon.ico" alt="Super User" /></label>
</div>
CSS:
.input_hidden {
position: absolute;
left: -9999px;
}
.selected {
background-color: #ccc;
}
#sites label {
display: inline-block;
cursor: pointer;
}
#sites label:hover {
background-color: #ccc;
}
#sites label img {
padding: 3px;
}
JS:
<script>
$('#sites input:checkbox').addClass('input_hidden');
$('#sites label').click(function() {
$(this).addClass('selected').siblings().removeClass('selected');
});
</script>
So my issue is sort of 2, I have a Fiddle which sort of does what I want, and then the fiddle I do have doesn't full work when I implement it.
I'm assuming I possibly have some css which is conflicting with that I'm trying to do, but I don't see how or what.
Any help is very appreciated -Tom

You could use only CSS pseudo class :checked and targeting next sibling label:
input[type=checkbox]:checked + label img
Finally, you should use as CSS rules:
#sites label:hover img,
#sites input[type=checkbox]:checked + label img {
background-color: #ccc;
}
DEMO jsFiddle
FYI, you could wish in some case to use instead of checkboxes radio buttons as in this jsFiddle:
http://jsfiddle.net/Zgh24/1173/
That could let you use persistant style on some element using only CSS with radio buttons hiddden:
http://jsfiddle.net/Zgh24/1174/

May be not sure.. the class .selected is used by bootstrap core and that style is applied to your label element.
Use your browser to see what style is applied.

HTML objects growing and pushing others

How could I make it so that given two elements let's say these boxes:
If I clicked over one, it would grow, and the other would shrink like and vice versa:
How can I do this?
I have seen this sort of done with CSS, using the focus tag and adjusting the width. But I have two problems there, first how could I affect the other element, and second as far as I can tell adjusting width will only stretch them right. I have seen people change the way they float the elements to deal with that, but I don't want to move them around the page to do this.

Here are 2 examples without Javascript/jQuery:
Pure CSS - Trigger on click: (example)
Using the checkbox hack in CSS you can effectively toggle the widths of the elements when the checkbox is :checked. Here is what part of the CSS looks like:
input[type=checkbox]:checked ~ .red {
width:70%;
}
input[type=checkbox]:checked ~ .green {
width:20%;
}
Go to the example for the full CSS.
HTML
<input type="checkbox" id="toggle" />
<div class="red">
<label for="toggle"></label>
</div>
<div class="green">
<label for="toggle"></label>
</div>
You might also be interested in the original example I made. It takes a different approach, though it doesn't fully work.
Pure CSS - Trigger on hover: (example)
Unfortunately, neither the adjacent selector, nor the general sibling selector can select previous elements, therefore it makes this a little difficult. I placed 2 general elements before the main elements in order to somewhat solve this issue.
.greenS:hover, .greenS:hover ~ .green,
.redS:hover, .redS:hover ~ .red {
width:72%;
}
.greenS:hover ~ .redS, .greenS:hover ~ .red,
.redS:hover ~ .greenS, .redS:hover ~ .green {
width:22%;
}
HTML
<div class="redS"></div><div class="greenS"></div>
<div class="red"></div>
<div class="green"></div>
Since this was tagged as JS/jQuery, here are 2 alternative solutions.
JS/jQuery - Trigger on click: (example)
$('.red, .green').click(function(){
$('.red').toggleClass('expanded')
.next('.green').toggleClass('contracted');
});
JS/jQuery - Trigger on hover: (example)
$('.red').hover(function(){
$(this).toggleClass('expanded')
.next('.green').toggleClass('contracted');
});
$('.green').hover(function(){
$(this).toggleClass('expanded')
.prev('.red').toggleClass('contracted');
});

See jQuery .animate() method documentation.
Example on jsfiddle:
.box {
width: 100px;
height: 100px;
display: inline-block;
}
#box1 {
background: red;
}
#box2 {
background: blue;
}
<div class="box" id="box1"></div>
<div class="box" id="box2"></div>
$('.box').click(function() {
var currentWidth = $(this).outerWidth(),
siblingCurrentWidth = $(this).siblings('.box').outerWidth();
$(this).animate({'width' : currentWidth/2})
.siblings('.box').animate({'width' : siblingCurrentWidth*2});
});
This is a very simple example with several flaws, but it demonstrates a possibility for what your purpose is.

Simple example http://jsfiddle.net/PeLub/ ( modify how you need) .
<div class="box" id="first"></div>
<div class="box" id="second"></div>
$("#first").click(function(){
$(this).animate({width:'50px'}, 500);
$("#second").animate({width:'150px'}, 500);
});
$("#second").click(function(){
$(this).animate({width:'50px'}, 500);
$("#first").animate({width:'150px'}, 500);
});