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CSS transparent colour overlay fade not working on iOS

I have made a grid of images and when you hover over them a semi-transparent overlay fades in and out and some text appears
I wanted this to work similarly on mobile devices, only instead of it fading in when you hover, it fades in when you tap
I have managed to get this working on android but not on mobiles.
I will show my code and a few examples of solutions I have tried. I have tried so many but I am rather new to javascript (I have some functioning javascript working on my site though!) and nothing is working on iOS devices.
Js fiddle:
https://jsfiddle.net/49h450g9/
I am using bootstrap and less. My grid HTML code:
<div class="col-sm-5 col-xs-5"><div class="image-wrap">
<img src="assets/images/image1.jpg">
<div class="overlay purple2">
<br>
<h3>image 1</h3>
<hr>
<p>description</p>
<br>
View Website
</div>
</div>
</div>
<div class="col-sm-3 col-xs-3"><div class="image-wrap">
<img src="assets/images/image2.jpg">
<div class="overlay blue">
<h3>image 2</h3>
<hr>
<p>description</p>
<br>
View Website
</div>
</div>
</div>
<div class="col-sm-4 col-xs-4"><div class="image-wrap">
<img src="assets/images/image4.jpg">
<div class="overlay purple1">
<h3>image 3</h3>
<hr>
<p>description</p>
<br>
View Website
</div>
</div>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row">
<div class="col-sm-7 col-xs-7"><div class="image-wrap">
<img src="assets/images/image5.jpg">
<div class="overlay blue">
<h3>image 5</h3>
<hr>
<p><strong>description</p>
<br>
View Website
</div>
</div>
</div>
<div class="col-sm-5 col-xs-5"><div class="image-wrap">
<img src="assets/images/image6.jpg">
<div class="overlay purple2">
<h3>Image 6</h3>
<hr>
<p>description</p>
<br>
View Website
</div>
</a>
</div>
</div>
</div>
</div>
CSS:
.image-wrap {
display: inline-block;
position: relative;
}
.overlay {
position: absolute;
top:0;
left: 0;
width: 100%;
height: 100%;
color:white;
opacity: 0;
transition:opacity .5s ease-out;
text-align: center;
hr {
border: 1px solid #fff;
width: 10%;
}
}
.image-wrap:hover .overlay {
opacity: 1;
}
.red {
background: rgba(102,67,154,0.7);
}
.blue {
background: rgba(23,56,179,0.7);
}
.purple1 {
background: rgba(140,23,179,0.7);
}
.purple2 {
background: rgba(71,13,142,0.7);
}
Solutions I have tried include:
adding
onclick=""
to the image wrap div element
2 adding the JS line to my js file:
$('body').bind('touchstart', function() {});
Adding the following js to my js file:
2 adding the JS line to my js file:
$(document).ready(function(){
$(".overlay").hover(function(){
//On Hover - Works on ios
$("p").hide();
}, function(){
//Hover Off - Hover off doesn't seem to work on iOS
$("p").show();
})
});
However, on iOS none of my solutions are working, when I tap no text or semi-transparent overlay fades in
I have been working on this for nearly a week and have looked at many questions on here but I cannot find a solution that works for me
Any help would be massively appreciated :)
Thanks!

use :active pseudo class instead of :hover. In touch mobile devices, once an hover is triggered, it will not get removed once you take your finger off. It need you to tap on somewhere else on the screen.
similarly in jquery you can use mousedown() and mouseup() for the same purpose. on mousedown() you may show the overlay and mouseup() you may hide it.

Remove styles from one div if other div's styles are active

I'm looking for a help with a small things to do on my CMS website.
I would like to know, if it's possible, how to to remove or hide styles from one div one a website while another div is active and only when this 2nd div is inside the first one.
I'm using easytabs jQuery plugin and easytabs html code is inserted in tinymce WYSIWYG HTML source editor, while <div class="block"></div> is generated from CMS, because it's a wrapper of content module.
Let me show you my code so maybe you can understand more what I want to do:
<div class="block">
<div id="tab-container" class="tab-container">
<ul class='etabs'>
<li class='tab'>HTML Markup</li>
<li class='tab'>Required JS</li>
<li class='tab'>Example CSS</li>
</ul>
<div id="tabs1-html">
<h2>HTML Markup for these tabs</h2>
<!-- content -->
</div>
<div id="tabs1-js">
<h2>JS for these tabs</h2>
<!-- content -->
</div>
<div id="tabs1-css">
<h2>CSS Styles for these tabs</h2>
<!-- content -->
</div>
</div>
</div>
<div class="block">
<div class="test">
</div>
</div>
Okay, so CMS is adding <div class="block"></div> with a styles
(thats are the styles):
#main .block {
border: 2px solid #e0e0e0;
padding: 24px 28px 24px 26px;
margin: 0 0 8px;
background: #ffffff;
text-align: justify;
overflow: auto;
}
And here comes the problem. I would like to remove or hide styles from this <div class="block"></div> element only while I have <div id="tab-container" class="tab-container"></div> inside this div <div class="block"></div>.
And I need to keep all the styles for <div class="block"></div> when I have other divs inside it.
Is it doable with some jQuery or JS ? Or it's not possible ?
Thanks in advance.

You can do this with the has() function within jQuery. You're going to have to reset or change each of the CSS values
$(document).ready(function() {
$('.block').has('#tab-container.tab-container').css('border', '0');
});
.block {
border: 2px solid red;
margin-bottom: 10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="block">
<div class="some_tag">
Text
</div>
</div>
<div class="block">
<div id="tab-container" class="tab-container">Some more text</div>
</div>
You can do an array of CSS values as well if there is more than one that needs to be changed like so:
.css({ "border": "0", "background": "blue"})

Insteed of resetting or overwritte all block classes maybe it would be much easier to add:
$(document).ready(function () {
$('.block').has('div.tab-container').removeClass('block');
});
This way you will remove the block class so no styles.
JSFIDDLE

Multiple overlay on a image

I'm creating two overlay in an image.
One overlay is fixed over the bottom of image,Second overlay will be displayed on mouse hover.
My problem is second overlay is displayed on first overlay but it should not display over the fixed one.
Sample partial Demo is here. Please find the screenshot too.
Please help me or guid me to the right way to solve the issue or implement the design..
HTML
<section id="s-explore">
<div class="pagebreak"><span>The Lifestyle</span> <i class="down"><</i>
</div>
<div class="wrapper layout">
<div class="col">
<div class="media">
<img id="d1" src="http://placekitten.com/300/300" />
<div class="contenthover">
<p>Lorem ipsum
</p>
</div>
</div>
</div>
CSS
.contenthover{
color:#fff;
}
.mybutton{
padding:20px;
color:#fff;
background-color:#000;
margin:10px;
}
Jquery
$(function () {
$(' #d1').contenthover({
overlay_width: 300,
overlay_height: 150,
effect: 'slide',
slide_direction: 'bottom',
overlay_x_position: 'center',
overlay_y_position: 'bottom',
overlay_background: '#000',
overlay_opacity: 0.8
});
});

Its just about the z-index of the third layer. You have to set the position of the media content to relative, position the 3 layer with absolute to the bottom and set z-index to bottom layer. That's it.
FIDDLE
html
<section id="s-explore">
<div class="pagebreak"><span>The Lifestyle</span> <i class="down"><</i>
</div>
<div class="wrapper layout">
<div class="col">
<div class="media">
<img id="d1" src="http://placekitten.com/300/300" />
<div class="contenthover">
<p>Lorem ipsum
</p>
</div>
<div class="bottom_layer">colors</div>
</div>
</div>
css
.contenthover{
color:#fff;
}
.mybutton{
padding:20px;
color:#fff;
background-color:#000;
margin:10px;
}
.bottom_layer{
position:absolute;
bottom: 0;
background:red;
z-index: 10;
width: 300px;
}
.media{
position:relative;
}

Unable to increase font size on click of a button

I want to change the font size of two divs when I click on a particular button however button click is not responding, pls help.
I am using two div IDs in one selector.
also pls let me know where is the error, below is my code.
<html>
<head>
<title>
Example 2
</title>
<style>
body
{
margin:10px 2em;
}
.switcher
{
float:right;
margin:10px;
background-color:#ddd;
border: 1px solid #000;
padding : 10px;
font-size:0.9em;
}
.large
{
font-size:2em;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
$(document).ready(function{
$('#switcher-large').on('click',function(){
$('#header, #chapter-preface').addClass('large');
});
});
</script>
</head>
<body>
<div id="container">
<div id="switcher" class="switcher">
<h3>Style Switcher</h3>
<button id="switcher-default">
Default
</button>
<button id="switcher-narrow">
Narrow Column
</button>
<button id="switcher-large">
Large Print
</button>
</div>
<div id="header">
<h2>A Christmas Carol</h2>
<h2 class="subtitle">In Prose, Being a Ghost Story of Christmas</h2>
<div class="author">by Charles Dickens</div>
</div>
<div class="chapter" id="chapter-preface">
<h3 class="chapter-title">Preface</h3>
<p>I HAVE endeavoured in this Ghostly little book, to raise the Ghost of an Idea, which shall not put my readers out of humour with themselves, with each other, with the season, or with me. May it haunt their houses pleasantly, and no one wish to lay it.</p>
<p>Their faithful Friend and Servant,</p>
<p>C. D.</p>
<p>December, 1843.</p>
</div>
</body>
</html>

You have a syntax error
Try replacing
$(document).ready(function{
for
$(document).ready(function(){

Try this
$('#header h2, #chapter-preface h3, #chapter-preface p').addClass('large');

JavaScript issue with scrollTo() in Chrome

I try to create a web page with a fixed navigation bar at the top that covers the content underneath. When loading the page with an anchor in the url the normal behaviour is that the page scrolls the anchor to the top of the window. But then that content is hidden under the navigation bar. So I try to solve this problem with JavaScript scrollTo(). My solution works fine with Firefox and Opera but not in Chrome. Please try the example. Any ideas how to fix this issue in Chrome? Thank you.
test.htm:
<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
<meta charset='UTF-8'>
<style type='text/css'>
#navi { position:fixed; left:0; top:0; width:100%; height:100px; background-color:yellow; }
#spacer { background-color:cyan; height:100px; }
#spacer2 { height:1000px; }
.style1 { background-color:green; height:200px; }
</style>
<script type='text/javascript'>
/* <![CDATA[ */
function scrollAnchor() { // doesn't work in Chrome
var y = document.getElementById(window.location.hash.substr(1)).offsetTop - 110;
window.scrollTo(0, y);
//alert(y);
}
/* ]]> */
</script>
</head>
<body id='top' onload='scrollAnchor();'>
<div id='navi'>
<a href='./test2.htm'>Menu</a>
</div>
<div id='main'>
<div id='spacer'></div>
<h3 id='1'>Heading 1</h3><p class='style1'></p>
<h3 id='2'>Heading 2</h3><p class='style1'></p>
<h3 id='3'>Heading 3</h3><p class='style1'></p>
<h3 id='4'>Heading 4</h3><p class='style1'></p>
<h3 id='5'>Heading 5</h3><p class='style1'></p>
<h3 id='6'>Heading 6</h3><p class='style1'></p>
<div id='spacer2'></div>
</div>
</body>
</html>
test2.htm:
<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
<meta charset='UTF-8'>
</head>
<body>
<a href='test.htm#1'>Heading 1</a>
<a href='test.htm#2'>Heading 2</a>
<a href='test.htm#3'>Heading 3</a>
<a href='test.htm#4'>Heading 4</a>
<a href='test.htm#5'>Heading 5</a>
<a href='test.htm#6'>Heading 6</a>
</body>
</html>

Chrome is so fast that your scrollTo() action fires before Chrome's default scroll to html anchor event.
Give it a tiny delay by using
setTimeout(function() {window.scrollTo(0, y);},1)
Or simply avoid using the actual element id as hash name
instead of using
test.htm#6
use
test.htm#link_6
then you can get the real id by doing something like
window.location.hash.split('_')[1]
Hope it helps.

I would suggest avoiding the use of JavaScript in favor of creating a dedicated anchor element and then offsetting it above the heading by at least your header height.
This has already been well described in https://stackoverflow.com/a/13184714/5951116.
Your code would then look something like this:
<div id='navi'>
<a href='./test2.htm'>Menu</a>
</div>
<div id='main'>
<div id='spacer'></div>
<div class='article-wrapper'>
<a class='anchor' id='1'></a>
<h3>Heading 1</h3><p class='style1'></p>
</div>
<div class='article-wrapper'>
<a class='anchor' id='2'></a>
<h3>Heading 2</h3><p class='style1'></p>
</div>
...
</div>
#navi {
height: 50px;
}
#main a.anchor {
display: block;
position: relative;
top: -50px;
visibility: hidden;
}
Or use CSS variables to remove as much tight coupling as possible:
:root {
--header-height: 50px;
}
#navi {
height: var(--header-height);
}
#main a.anchor {
display: block;
position: relative;
top: -var(--header-height);
visibility: hidden;
}