Develop Reference

How to change button color when radio input is selected, but input is wrapped in div before label?

I am trying to make our dinky radio buttons into lovely toggle buttons on our donation page. The HTML cannot be modified, and as it stands the inputs are wrapped in divs, then followed by the labels. I have zero knowledge of JS/jQuery and I imagine this task requires some.
Here is my fiddle: https://jsfiddle.net/cgz63qhd/
body {
padding: 10px;
font-family: sans-serif;
}
div.donation-levels {
margin: 3px 0;
}
.donation-level-container {
display: inline-block;
}
.donation-level-container input {
visibility: hidden;
}
.donation-level-amount-container {
text-align: center;
margin: 5px 2px;
padding: 0.7em 2em;
color: #ffffff;
background-color: #1a92b4;
border-radius: 5px;
display: inline-block;
cursor: pointer;
font-size: 22px;
}
.donation-level-amount-container:hover {
background: #e8525f;
color: #ffffff;
}
.donation-level-label-input-container input:checked~label {
background: #e8525f;
}
<div class="donation-level-container">
<div class="form-content">
<div class="donation-level-input-container form-input">
<div class="donation-level-label-input-container">
<input name="level_flexibleexpanded" id="level_flexibleexpanded5942" value="5942" onclick="evalMatchingGift('$35.00');" type="radio">
</div>
<label for="level_flexibleexpanded5942" onclick="">
<div class="donation-level-amount-container">
$35.00
</div>
</label>
</div>
<input name="level_flexibleexpandedsubmit" id="level_flexible_5942expandedsubmit" value="true" type="hidden">
</div>
</div>
<div class="donation-level-container">
<div class="form-content">
<div class="donation-level-input-container form-input">
<div class="donation-level-label-input-container">
<input name="level_flexibleexpanded" id="level_flexibleexpanded5943" value="5943" onclick="evalMatchingGift('$60.00');" type="radio">
</div>
<label for="level_flexibleexpanded5943" onclick="">
<div class="donation-level-amount-container">
$60.00
</div>
</label>
</div>
<input name="level_flexibleexpandedsubmit" id="level_flexible_5943expandedsubmit" value="true" type="hidden">
</div>
</div>
<div class="donation-level-container">
<div class="form-content">
<div class="donation-level-input-container form-input">
<div class="donation-level-label-input-container">
<input name="level_flexibleexpanded" id="level_flexibleexpanded5944" value="5944" onclick="evalMatchingGift('$120.00');" type="radio">
</div>
<label for="level_flexibleexpanded5944" onclick="">
<div class="donation-level-amount-container">
$120.00
</div>
</label>
</div>
<input name="level_flexibleexpandedsubmit" id="level_flexible_5944expandedsubmit" value="true" type="hidden">
</div>
</div>
Here is my inspiration donate page: https://action.audubon.org/donate/now
Alas, their labels are set up better so I think they were able to make the buttons with pure CSS (?).
My buttons currently are looking decent, are sized fine and colored nicely, but they just won't stay that coral color when clicked! Can someone help me out?
I've seen a lot of questions here on this topic but I can't seem to get anything to work.
I'm sure there are other issues in the code, please point them out if you see them!

$(".donation-level-amount-container").on("click", function() {
$('.donation-level-amount-container').each(function() {
$(this).removeClass('active');
});
$(this).toggleClass('active');
})
And css
.active {
background:#e8525f;
color:#ffffff;
}
Working fiddle:
https://jsfiddle.net/29exoa4k/2/

You need this piece of jQuery:
$(function() {
$(document).on('click','.donation-level-amount-container',function(){
$('.donation-level-amount-container').removeClass('active');
$(this).addClass('active');
});
});
Update also to this CSS:
.donation-level-amount-container:hover, .donation-level-amount-container.active {
background:#e8525f;
color:#ffffff;
}
Here is the updated jsfiddle.

You want something like this
$(".donation-level-amount-container").on("click", function() {
$(this).css("background", "red");
})
or to toggle an active class
$(".donation-level-amount-container").on("click", function() {
$(this).toggleClass("active");
})

You need this
$(".donation-level-amount-container").on("click", function() {
$(".donation-level-amount-container").css("background", "#1a92b4");
$(this).css("background", "#e8525f");
})
and css !important for background property
.donation-level-amount-container:hover {
background:#e8525f!important;
color:#ffffff;
}
here's your updated fiddle https://jsfiddle.net/cgz63qhd/3/

Indeed, this can not be done with pure CSS, since you can't traverse upward in the DOM using CSS selectors. As previous answers mentioned, it can easily be done with jQuery, but it can also be done in vanilla javascript.
var donationButtons = document.querySelectorAll('.donation-level-amount-container');
var defaultBg = '#1a92b4';
var activeBg = '#f00';
donationButtons.forEach(function(btn){
btn.onclick = function(){
donationButtons.forEach(function(btn){
// deselect previously selected buttons
btn.style.background = defaultBg;
});
this.style.background = activeBg;
}
});
I'm certain this can be done smoother, but this is the first solution that popped up in my head.

Javascript - show a button inside of a DIV when clicked (and hide all others)

I have a list of DIVS that have buttons inside. By default, all buttons are hidden. When I click within a DIV area, the current button inside of this clicked DIV are should show (class='.db') AND all previously clicked/shown buttons should be hidden (class='.dn'). In other words, at any time there should be only one button (currently clicked) shown and all other should be hidden.
I want to use vanilla Javascript and tried this below, but it won't work. I feel there is some small error but don't know where.. Note - the DIVS and buttons don't have their own unique IDs (they only have the same CSS (.posted) classes.
PS - maybe it'd be better not to add this onClick="t();" to each DIV and use an 'addEventListener' function, but this is way too much for me ; )
CSS:
.dn {display:none}
.db {display:block}
.posted {
height: 50px;
width: 100px;
background-color: green;
border: 2px solid red;
}
HTML:
<div class="posted" onClick="t();">
<button class="dn">Reply</button>
</div>
<div class="posted" onClick="t();">
<button class="dn">Reply</button>
</div>
<div class="posted" onClick="t();">
<button class="dn">Reply</button>
</div>
JAVASCRIPT:
function t()
{
var x=document.getElementsByClassName("posted"),i,y=document.getElementsByTagName("button");
for(i=0;i<x.length;i++)
{
x[i].y[0].className="dn";
};
x.y[0].className='db';//make sure the currently clicked DIV shows this button (?)
}

You might want to read more about selector, how to select class, block level etc.
some link might be helpful:
CSS selector:
https://www.w3schools.com/cssref/css_selectors.asp
jQuery selector:
https://api.jquery.com/category/selectors/
Solution - Using jQuery:
$('.posted').on('click', function() {
//find all class called posted with child called dn, then hide them all
$('.posted .dn').hide();
//find this clicked div, find a child called dn and show it
$(this).find('.dn').show();
});
.dn {
display: none
}
.db {
display: block
}
.posted {
height: 50px;
width: 100px;
background-color: green;
border: 2px solid red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="posted">
<button class="dn">Reply1</button>
</div>
<div class="posted">
<button class="dn">Reply2</button>
</div>
<div class="posted">
<button class="dn">Reply3</button>
</div>
Solution - Pure js version:
//get list of div block with class="posted"
var divlist = Array.prototype.slice.call(document.getElementsByClassName('posted'));
//for each div
divlist.forEach(function(item) {
//add click event for this div
item.addEventListener("click", function() {
//hide all button first
divlist.forEach(function(el) {
el.getElementsByTagName('button')[0].classList.add('dn');
});
//show button of the div clicked
this.getElementsByTagName('button')[0].classList.remove('dn');
}, false);
});
.dn {
display: none
}
.db {
display: block
}
.posted {
height: 50px;
width: 100px;
background-color: green;
border: 2px solid red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="posted">
<button class="dn">Reply1</button>
</div>
<div class="posted">
<button class="dn">Reply2</button>
</div>
<div class="posted">
<button class="dn">Reply3</button>
</div>

You can do this with with plain JavaScript using Event Bubbling, querySelector and the element classList attribute like this.
Change your HTML to look like this:
<div class="posts">
<div class="posted">
<button class="dn">Reply</button>
</div>
<div class="posted" >
<button class="dn">Reply</button>
</div>
<div class="posted" >
<button class="dn">Reply</button>
</div>
</div>
Then use JavaScript like this:
var posts = document.querySelector('.posts');
var allPosted = document.querySelectorAll('.posted');
//clicks bubble up into the posts DIV
posts.addEventListener('click', function(evt){
var divClickedIn = evt.target;
//hide all the buttons
allPosted.forEach(function(posted){
var postedBtn = posted.querySelector('button');
postedBtn.classList.remove('db');
});
// show the button in the clicked DIV
divClickedIn.querySelector('button').classList.add('db')
});
You can find a working example here: http://output.jsbin.com/saroyit

Here is very simple example using jQuery .siblings method:
$(function () {
$('.posted').click(function () {
$('button', this).show();
$(this).siblings().find('button').hide();
});
});
https://jsfiddle.net/3tg6o1q7/

Css how to replace block after click button

My requirement is that..I have a box. inside box I have a form..What I want is that..When I click the submit button ,inside the box the form will gone and a message will display.
Just like this:
I have the jefiddle :
jsfiddle
here ,When I click to the submit button,message is appearing on the top and the box1 is going down..

I'd much prefer using jQuery to do this, but here's the updated fiddle using only javascript, and keeping changes minimal.
<div id="box">
<div class="box2">
<h1 id="welcomeDiv" style="display:none;" class="answer_list" >welcome</h1>
<h1 id="details">Details</h1>
<form id="foo-form" method="POST" onsubmit="return showDiv();">
<input type="text" name="user" placeholder="Your name"/>
<input type="submit" name="create" class="enter submit" value="Enter"/>
</form>
</div>
</div>
... and the script ...
function showDiv() {
document.getElementById('welcomeDiv').style.display = "block";
document.getElementById('details').style.display = "none";
document.getElementById('foo-form').style.display = "none";
return false;
}
http://jsfiddle.net/0qyj62dv/7/
The form elements are now being hidden, the original details message is being hidden, and the welcome text is within the box now, not external to it. Oh, and I moved the function call to onsubmit of the form, so it returns false now and doesn't actually try to submit the form on jsfiddle.
Hth

Please try this
HTML: (Change type= submit to type=button)
<input type="button" name="create" class="enter submit" value="Enter" onclick="showDiv()" >
CSS: (Change type= submit to type=button)
.box2 input[type=button] {
width: 100%;
display: block;
margin-bottom: 10px;
position: relative;
}
.answer_list{
margin: 0px auto;
position: relative;
background:pink;
height:300px;
width:400px;
display: block;
border: dotted;
border-width: 1px;
text-align:center;
}
DEMO

Create a class with same styling as that of #box.
Let's say answer_box
.answer_box {
margin: 0px auto;
position: relative;
background: pink;
height: 300px;
width: 400px;
display: block;
border: dotted;
border-width: 1px;
}
Add answer_box class to welcome container.
<div id="welcomeDiv" style="display:none;" class="answer_box" ><h1> WELCOME<h1></div>
To align it from top, give little margin to <h1> inside welcome div.
You need to hide the box container when submit is clicked.
function showDiv() {
document.getElementById('box').style.display = "none";
document.getElementById('welcomeDiv').style.display = "block";
}

look at this example,
http://jsfiddle.net/0qyj62dv/8/
all you need to do is this
submit form using ajax.
Add the welcome tab and form tab inside same parent div
toggle tabs as you want using style.display property
<button type="button" name="create" class="enter submit" onclick="submitForm()">Enter</button>
function submitForm(){
document.getElementById('tab2').style.display = "block";
document.getElementById('tab1').style.display = "none";
$.ajax({
method: 'POST',
url : '',
data : $('#myForm').serialize(),
success : function(data){
console.log('success',data);
alert('success');
}
});
}
you may call this using jquery

CSS: Change parent on focus of child

Let's say you have something like:
<div class="parent">
<input class="childInput" type="text" />
<div class="sibling"></div>
</div>
I want to change the appearance of the parent/siblings when the child receives focus. Are there any CSS tricks for doing stuff like this?
Edit:
The reason for my question is as follows:
I'm creating an Angular app which needs editable text fields. It should look like a label until it is clicked, at which point it should look like a normal text input. I styled the text field based on :focus to achieve this effect, but the text is cut off by text input's boundaries. I also used ng-show, ng-hide, ng-blur, ng-keypress and ng-click to switch between the label and the text input based on blurs, key presses and clicks. This worked fine except for one thing: After the label's ng-click="setEdit(this, $event)" changes the edit boolean used by ng-show and ng-hide to true, it uses a jQuery call to .select() the text input. However, it isn't until after the completion of the ng-click that everything is $digest'd, so the text input loses focus again. Since the text input never actually receives focus, using ng-blur to revert back to showing the label is buggy: The user has to click in the text input and then click out of it again to revert back to showing the label.
Edit:
Here's an example plunk of the issue: http://plnkr.co/edit/synSIP?p=preview

You can now do this in pure CSS, so no JavaScript needed 😁
The new CSS pseudo-class :focus-within would help for cases like this and will help with accessibility when people use tabbing for navigating, common when using screen readers.
.parent:focus-within {
border: 1px solid #000;
}
The :focus-within pseudo-class matches elements that either themselves
match :focus or that have descendants which match :focus.
Can I use...
You can check which browsers support this by visiting http://caniuse.com/#search=focus-within
Demo
fieldset {
padding: 0 24px 24px !important;
}
fieldset legend {
opacity: 0;
padding: 0 8px;
width: auto;
}
fieldset:focus-within {
border: 1px solid #000;
}
fieldset:focus-within legend {
opacity: 1;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<form>
<fieldset>
<legend>Parent Element</legend>
<div class="form-group">
<label for="name">Name:</label>
<input class="form-control" id="name" placeholder="Enter name">
</div>
<div class="form-group">
<label for="email">Email:</label>
<input type="email" class="form-control" id="email" placeholder="Enter email">
</div>
</fieldset>
</form>
</div>

There is no chance how to do that with CSS. CSS can style only siblings, children, etc. not parents.
You can use simply JS like this:
<style>
.parent {background: green}
.focused {background: red;}
</style>
<div class="parent">
<input class="childInput" type="text" />
<div class="sibling"></div>
</div>
<script>
$('.parent > *')
.focus(function() {
$('.parent').addClass('focused');
})
.blur(function() {
$('.parent').removeClass('focused');
});
</script>
http://jsfiddle.net/C4bZ6/
This code takes all direct children of .parent and if you focus one of them, class focused is added to parent. On blur, this class is removed.

You can use pure CSS to make the text input look like it's not a text input unless it is in focus
http://jsfiddle.net/michaelburtonray/C4bZ6/13/
input[type="text"] {
border-color: transparent;
transition-duration: 600ms;
cursor: pointer;
outline-style: none;
text-overflow: ellipsis;
}
input[type="text"]:focus {
border-color: initial;
cursor: auto;
transition-duration: 300ms;
}

Try the contenteditible attribute. This may require more work to turn it into usable form data however.
http://jsfiddle.net/michaelburtonray/C4bZ6/20/
<span class="parent" contenteditable>Click me</span>

You can style it even for focus-within and not(focus-within) like this (without using JavaScript => more accessible and faster):
.myform:not(:focus-within) button[type="submit"] {
display: none;
}
.myform:focus-within button[type="submit"] {
display: block;
}

change the image background of a button when it's clicked

I put an input button, and set its background with an image, now Ii want to change that image when the button is clicked.
Here is my relevant code:
<div id='back'>
<input type="button"/>
</div>
CSS code:
#back input{
width: 130px;
height: 130px;
background: url(img/back_default.png);
border: hidden;
}
Can it be done in CSS (as with links-<a> tags), or should I rely to JavaScript instead? Thanks.

Javascript is not needed:
#back input {
width: 130px;
height: 130px;
background: url(img/back_default.png);
border: hidden;
}
#back input:active {
background-image: url(img/back_default-active.png);
}

This should work with JavaScript:
function change() {
document.
getElementById("back").
getElementsByTagName("input").
style.backgroundImage = "url(img/anotherImage.png)"
}
Call it from your button click (or from anywhere you want):
<div id='back'>
<input type="button" onclick="change()"/>
</div>

It's as Matt Said you could use CSS's active pseudo class to change the background or alternatively you could use javascript to add an eventHandler (onClick Listner )to the button that changes the image.
HTML
<div id='back'>
<input type="button" id="xyz" value="Go to back" class="button"/>
</div>
JS
<script>
el = document.getElementById('xyz');
el.addEvenListener("click",changeImg,false);
function changeImg()
{
el = document.getElementById('xyz');
el.style.backround="url('img/back_default-active.png')";
}
</script>