Text appear/disappear on top of image with button toggle - javascript

In mobile, I'm trying to create a toggle that appears on top of an image, that when tapped on, makes text appear on top of the image too.
I basically want to recreate how The Guardian newspaper handles the little (i) icon in the bottom right corner on mobile.
And on desktop, the the text is there by default under the image and the (i) icon is gone.
So far I've managed to find a similar solution elsewhere online but it's not quite working right as I need it to.
function toggleText() {
var text = document.getElementById("demo");
if (text.style.display === "none") {
text.style.display = "block";
} else {
text.style.display = "none";
}
}
#blog {
width: 100%;
}
#blog figure {
position: relative;
}
#blog figure figcaption {
display: none;
position: absolute;
bottom: 0;
left: 0;
box-sizing: border-box;
width: 100%;
color: black;
text-align: left;
background: rgba(0, 0, 0, 0.5);
}
#blog figure button {
position: absolute;
bottom: 0;
right: 0;
color: black;
border: 5px solid black;
}
<div id="blog">
<figure>
<img src="https://cdn2.hubspot.net/hubfs/4635813/marble-around-the-world.jpg" alt="A photo of a slab of marble for example">
<figcaption id="demo" style='display: none'>A photo of a slab of marble for example</figcaption>
<button type='button' onclick="toggleText()">(i)</button>
</figure>
</div>

Don't use IDs. Your code should be reusable!
Don't use inline JS on* handlers, use Element.addEventListener() instead
Don't use inline style attributes.
Don't use el.style.display === "something" to check for display styles. Use Element.classList.toggle() instead
This straightforward example uses JavaScript to simply toggle a className "is-active" on the button's parent, the figure Element.
Everything else (icon symbol change, caption animation etc...) is handled purely by CSS:
document.querySelectorAll("figure button").forEach(EL_btn => {
EL_btn.addEventListener("click", () => {
EL_btn.closest("figure").classList.toggle("is-active");
});
});
/* QuickReset */ * {margin: 0; box-sizing: border-box;}
img {
max-width: 100%; /* Never extend images more than available */
}
figure {
position: relative;
overflow: hidden; /* overflow hidden to allow figcaption hide bottom */
}
figure img {
display: block; /* prevent "bottom space" caused by inline elements */
}
figure figcaption {
position: absolute;
width: 100%;
bottom: 0;
padding: 1rem;
padding-right: 4rem; /* Prevent text going under the button icon */
color: #fff;
background: rgba(0, 0, 0, 0.5);
transform: translateY(100%); /* Move down, out of view */
transition: transform 0.3s; /* Add some transition animation */
}
figure.is-active figcaption {
transform: translateY(0%); /* Move into view */
}
figure button {
position: absolute;
width: 2rem;
height: 2rem;
bottom: 0.5rem;
right: 0.5rem;
border-radius: 50%;
color: #fff;
background: rgba(0, 0, 0, 0.5);
border: 0;
cursor: pointer;
}
figure button::before {
content: "\2139"; /* i icon */
}
figure.is-active button::before {
content: "\2A09"; /* x icon */
}
<figure>
<img src="https://cdn2.hubspot.net/hubfs/4635813/marble-around-the-world.jpg" alt="A photo of a slab of marble for example">
<figcaption>A photo of a slab of marble for example</figcaption>
<button type="button"></button>
</figure>
The above will work for any number of such elements on your website without the need to add any more CSS or JS.

I see a couple things that could mess this up, one is the fact that there is nothing to make your image adjust to your mobile screen, more-over there is also margin that is there by default, so I suggest these changes to the CSS:
First I'd set box-sizing to border-box and margin to 0, this should be a regular practice by the way.
*{
box-sizing: border-box;
margin: 0;
}
Then select the image and make it adjust to your page as such
#blog figure img{
height: auto;
width:100%;
}
Finally, for some styling you can add some padding to your blog div to make the image slightly smaller on your screen
#blog {
width: 100%;
padding: 35px;
}
This is the Fiddle for it.

Related

How can I toggle or hide CSS pseudo-elements on event (e.g., click)?

Background
I have an HTML div which contains a ‘tooltip’-like feature (i.e., a text box pops up when a certain element is clicked or hovered over); this tooltip has decorative pseudo-elements to make it look like a ‘speech bubble,’ added in css as :before and :after .
I have a JS script, which is intended to show and hide the tooltip and decoration, in response to click events (i.e., toggle them between ‘show’ and ‘hide’ states).
Problem
I can’t get the decorative pseudo-elements to hide when the tooltip is hidden; as pseudo-elements, they are not part of the DOM and so I can’t use normal selectors to manipulate them.
When the tooltip is hidden on click, the decorative pseudo-elements persist, which is not a usable result.
I can’t do away with the decorative elements, they are part of the work specification.
Approach tried so far
Based on this question, my thought was to add an empty span with its own class, to which I’d prepend and append these pseudo-elements. Then, add or remove the class on click based on whether it exists already, or not.
I have also tried setting the class to which the pseudo-elements are pre/appended to display:none on click, but this also seems not to work
However, I cannot convince the pseudo-elements to hide on click.
I’ve included a screenshot of what these remnant pseudo-elements look like in the live environment.
Note: I tried to work up a running simulation for the purpose of this question, but I wasn’t able to and the original css file is massive; the code included below is for reference only.
All guidance is much appreciated!
const barContainer = document.querySelector(".bar-container");
const decorationElement = document.querySelector("#decoration");
document.addEventListener('click', function(event) {
console.log('click event listener triggered');
if (event.target.closest('.link') || event.target.classList.contains('link')) {
if (barContainer.classList.contains('open')) {
barContainer.classList.remove('open')
decorationElement.classList.remove('decoration')
document.querySelector('.tooltip-container').setAttribute('style', 'display:none');
} else {
barContainer.classList.add('open')
decorationElement.classList.add('decoration')
document.querySelector('.tooltip-container').setAttribute('style', 'display:block');
}
} else {
barContainer.classList.remove('open')
decorationElement.classList.remove('decoration')
document.querySelector('.tooltip-container').setAttribute('style', 'display:none');
}
});
.foo-container {
height: auto;
position: relative;
}
.bar-container {
height: auto;
position: relative;
text-align: center;
}
.bar-container:hover .tooltip-container,
.tooltip-container:hover,
.bar-container.open .tooltip-container {
position: absolute;
display: block;
text-align: left;
background-color: #ffffff;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
bottom: 50px;
right: 5%;
border-radius: 4%;
font-weight: 300;
max-width: 90%;
font-size: 14px;
padding: 20px 0;
}
/*the below two rule sets create the rotated 'decoration' */
.bar-container:hover .tooltip-container:before,
.tooltip-container:hover:before,
.bar-container.open .tooltip-container:before,
.foo-container .bar-container:hover .decoration:before {
content: "";
width: 65px;
height: 35px;
position: absolute;
overflow: hidden;
transform: rotate(-180deg);
z-index: 10;
bottom: 0;
left: 170px;
background-color: white;
}
.foo-container .bar-container.open .decoration:before,
.foo-container .bar-container:hover .decoration:before {
content: "";
position: absolute;
width: 30px;
height: 30px;
background: #fff;
transform: rotate(45deg);
left: 30px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
z-index: 2;
top: -42px;
}
/* end 'deocration' */
<div class="foo-container">
<div class="bar-container">
<p>text <span class='link'>the-link<span id='decoration' class='decoration'></span></span>
</p>
<div class='tooltip-container'>
<p>lorem </p>
</div>
</div>
</div>
Screenshot of the undesirable 'persistent pseudo-elements' behavior -->

How can I add interactive semantics to a pseudo element with CSS or JavaScript?

I have a small carousel that plays automatically on page load, using HTML, CSS and JavaScript and definitely no jQuery.
To add a pause/play option there is a span with role="checkbox" followed by a label.
The label itself is hidden and has no content. The span has two pseudo elements. On first showing, the pseudo element shows the ⏸ character, controlled by a CSS ::after class. When clicked, the span has the class "is-clicked" added, at which point the ▶ character is displayed, controlled by another ::after class
It is focusable and can be activated with the keyboard by hitting the Enter key, but when I check with Lighthouse, I keep getting the "Focusable elements should have interactive semantics".
Why is this?
Here is the code:
/* detect keyboard users */
function handleFirstTab(e) {
if (e.key === 'Tab') { // the 'I am a keyboard user' key
document.body.classList.add('user-is-tabbing');
window.removeEventListener('keydown', handleFirstTab);
}
}
let checkboxEl = document.getElementById('checkbox');
let labelEl = document.getElementById('checkboxLabel');
labelEl.onclick = function handleLabelClick() {
checkboxEl.focus();
toggleCheckbox();
}
function toggleCheckbox() {
let isChecked = checkboxEl.classList.contains('is-checked');
checkboxEl.classList.toggle('is-checked', !isChecked);
checkboxEl.setAttribute('aria-checked', !isChecked);
}
checkboxEl.onclick = function handleClick() {
toggleCheckbox();
}
checkboxEl.onkeypress = function handleKeyPress(event) {
let isEnterOrSpace = event.keyCode === 32 || event.keyCode === 13;
if(isEnterOrSpace) {
toggleCheckbox();
}
}
.link {
height: auto;
border: 1px solid #000;
margin-bottom: 1rem;
width: 80%;
display: block;
}
#carousel-checkbox {
margin-bottom: 1rem;
height: 50px;
width: 100px;
display: inline-block;
}
#carousel-checkbox input {
display: none;
}
#carousel-checkbox label {
display: inline-block;
vertical-align: middle;
}
#carousel-checkbox #checkbox {
position: relative;
top: 0;
left: 30px;
padding: 0.5rem 1rem;
background: rgba(255,255,255, 0.5);
}
#carousel-checkbox #checkbox:hover {
cursor: pointer;
}
#carousel-checkbox #checkbox:focus {
border: 1px dotted var(--medium-grey);
}
#carousel-checkbox #checkbox::after {
content: "⏸";
font-size: 1.5rem;
color: var(--theme-dark);
}
#carousel-checkbox #checkbox.is-checked::after {
content: "▶";
}
<div class="link">A bit of text with a dummy link to demonstrate the keyboard tabbing navigation. </div>
<div id="carousel-checkbox"><span id="checkbox" tabindex="0" role="checkbox" aria-checked="false" aria-labelledby="checkboxLabel"></span><label id="checkboxLabel"></label></div>
<div class="link">Another link to another dummy link</div>
Why is this? Is it because the pseudo elements don't have a name attribute or something like that?
I have tried a different way, by dropping the pseudo elements and trying to change the span innerHTML depending on whether the class 'is-clicked' exists or not, but although I can get the pause character to display initially, it won't change the innerHTML to the play character when the span is clicked again.
Short Answer
This is a warning rather than an error, it is telling you to check that the item actually is interactive.
Now you have got the interactivity on the element so you can ignore that issue.
Long answer
Why not just use a <input type="checkbox"> and save yourself an awful lot of extra work?
You can hide a checkbox with a visually hidden class.
This then allows you to do the same trick with a pseudo element as the visual representation of the state.
I have made several changes to your example that mean you don't have to worry about capturing keypresses etc. and can just use a click handler so your JS is far simpler.
Notice the trick with the label where I add some visually hidden text within it so the label is still visible (so we can still use psuedo elements!).
I then use #checkbox1 ~ label to access the label with CSS so we can change the state.
The final thing to notice is how I changed the content property slightly. This is because some screen readers will try and read out pseudo elements so I added alt text that was blank. Support isn't great at just over 70%, but it is worth adding for browsers that do support it.
Example
The below hopefully illustrates a way of achieving what you want with a checkbox.
There may be a few errors as I just adapted your code so please do not just copy and paste!
note: a checkbox should not work with Enter, only with Space. If you want it to work with both it should instead be a toggle switch etc. so that would be a completely different pattern.
let checkboxEl = document.getElementById('checkbox1');
let labelEl = document.querySelector('#checkboxLabel');
function toggleCheckbox() {
let isChecked = checkboxEl.classList.contains('is-checked');
checkboxEl.classList.toggle('is-checked', !isChecked);
checkboxEl.setAttribute('aria-checked', !isChecked);
}
checkboxEl.onclick = function handleClick() {
toggleCheckbox();
}
.link {
height: auto;
border: 1px solid #000;
margin-bottom: 1rem;
width: 80%;
display: block;
}
#carousel-checkbox {
margin-bottom: 1rem;
height: 50px;
width: 100px;
display: inline-block;
}
.visually-hidden {
border: 0;
padding: 0;
margin: 0;
position: absolute !important;
height: 1px;
width: 1px;
overflow: hidden;
clip: rect(1px 1px 1px 1px); /* IE6, IE7 - a 0 height clip, off to the bottom right of the visible 1px box */
clip: rect(1px, 1px, 1px, 1px); /*maybe deprecated but we need to support legacy browsers */
clip-path: inset(50%); /*modern browsers, clip-path works inwards from each corner*/
white-space: nowrap; /* added line to stop words getting smushed together (as they go onto seperate lines and some screen readers do not understand line feeds as a space */
}
#carousel-checkbox label {
display: inline-block;
vertical-align: middle;
}
#carousel-checkbox #checkbox1 {
position: relative;
top: 0;
left: 30px;
padding: 0.5rem 1rem;
background: rgba(255,255,255, 0.5);
}
#carousel-checkbox #checkbox1 ~label:hover {
cursor: pointer;
}
#carousel-checkbox #checkbox1:focus ~ label {
border: 1px dotted #333;
}
#carousel-checkbox #checkbox1 ~label::after {
content: "⏸" / "";
font-size: 1.5rem;
color: #000;
}
#carousel-checkbox #checkbox1.is-checked ~label::after {
content: "▶" / "";
}
<div class="link">A bit of text with a dummy link to demonstrate the keyboard tabbing navigation. </div>
<div id="carousel-checkbox">
<input type="checkbox" id="checkbox1" class="visually-hidden">
<label for="checkbox1" id="checkboxLabel">
<span class="visually-hidden">Pause animations</span>
</label>
</div>
<div class="link">Another link to another dummy link</div>
In the end, I gave up on using a checkbox, due to the difficulties with iPad/iOS not responding to checkbox events. Whilst it worked in codepen on iOS it wouldn't work on the actual site. So I switched to a button.
Here is the code, which is fully accessible with no 'interactive semantics' warnings, shown with some dummy slides. The animation is based on having only three slides. If you wanted more or less, then the timings would have to be adjusted accordingly. All I need now is to style the pause button.
let element = document.getElementById("pause");
function toggleButton() {
element.classList.toggle("paused");
if (element.innerHTML === "⏸") {
element.innerHTML = "▶";
}
else {
element.innerHTML = "⏸";
}
}
element.onclick = function handleClick() {
toggleButton();
}
#carousel {
height: auto;
max-width: 1040px;
position: relative;
margin: 4rem auto 0;
}
#carousel > * {
animation: 12s autoplay6 infinite linear;
position: absolute;
top: 0;
left: 0;
opacity: 0.0;
}
#carousel .one {
position: relative;
}
.homeSlides {
height: 150px;
width: 400px;
background-color: #ff0000;
}
.homeSlides.two {
background-color: #0fff00;
}
.homeSlides.three {
background-color: #e7e7e7;
}
#keyframes autoplay6 {
0% {opacity: 0.0}
4% {opacity: 1.0}
33.33% {opacity: 1.0}
37.33% {opacity: 0.0}
100% {opacity: 0.0}
}
#carousel > *:nth-child(1) {
animation-delay: 0s;
}
#carousel > *:nth-child(2) {
animation-delay: 4s;
}
#carousel > *:nth-child(3) {
animation-delay: 8s;
}
#carousel-button {
position: relative;
height: 100%;
width: auto;
}
#carousel-button button {
position: absolute;
top: -3.5rem;
right: 5rem;
padding: 0 0.5rem 0.25rem;;
background: #fff;
z-index: 98;
font-size: 2rem;
cursor: pointer;
}
body.user-is-tabbing #carousel-button button:focus {
outline: 1px dotted #333;
}
body:not(.user-is-tabbing) #carousel-button button:focus {
outline: none;
}
#carousel-button button:hover {
cursor: pointer;
}
#carousel-button ~ #carousel * {
animation-play-state: running;
}
#carousel-button button.paused ~ #carousel * {
animation-play-state: paused;
}
<div id="carousel-button"><button id="pause" class="">⏸</button>
<div id="carousel">
<div class="homeSlides one">This is div one</div>
<div class="homeSlides two">This is div two</div>
<div class="homeSlides three">This is div three</div>
</div>
</div>

set class in css or hover over 2 overlapping divs

Is it possible to give the hover-icon a class, so that the icon is the triggerinfo? The image is in gray when i hover it, it gets colored but I wan't to hover a text when is colored, when I going over the little icon. Is there a way overlapping the div with the triggerinfo class over the image, but not leaving the hover of the image. Like hover the div that is not visible and not leaving the hover effect colored ?
Thanks !
If it helps I can share the link to my website, but only as message not for the public post. It gets more visual, and I think better to understand what I mean.
jQuery(document).ready(function() {
jQuery(".triggerinfo").mouseleave(function() {
jQuery(this).next(".info").hide();
});
jQuery(".triggerinfo").hover(function() {
jQuery(this).next(".info").toggle("fade");
});
});
.info {
display: none;
padding: 10px;
background: #fff;
position: absolute;
box-sizing: border-box;
z-index: 1;
}
.triggerinfo {
display: inline-felx;
opacity: 0.1;
position: absolute;
margin-top: -50px;
margin-left: 30px;
z-index: 3;
}
.uk-overlay-icon:before {
content: "\f0c9";
position: absolute;
top: 90%;
left: 10%;
width: 30px;
height: 30px;
margin-top: -15px;
margin-left: -15px;
font-size: 30px;
line-height: 1;
font-family: FontAwesome;
text-align: center;
color: #f69c00;
}
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div data-uk-filter="dsgf" data-grid-prepared="true" style="position: absolute; box-sizing: border-box; padding-left: 10px; padding-bottom: 10px; top: 0px; left: 0px; opacity: 1;">
<div class="uk-panel">
<div class="uk-panel-teaser">
<figure class="uk-overlay uk-overlay-hover ">
<img src="/wp-content/uploads/bilder/projekte/dsf.jpg" class="uk-overlay-grayscale" alt="dfsg">
<div class="uk-overlay-panel uk-overlay-icon uk-overlay-fade"></div>
<a class="uk-position-cover" href="/wp-content/plugins/widgetkit/cache/nuding-35281426b204ba8667e05928e60e8a11.jpg" data-lightbox-type="image" data-uk-lightbox="{group:'.wk-1b2a'}" title="dsfg"></a>
</figure>
</div>
<div>
<div class="triggerinfo">
sdf
</div>
<div class="info">
<h5>dsfg</h5>
</div>
</div>
</div>
</div>
The Fiddlejsfiddle.net/e8qd8gvf/3/ works now as it should on my site. Now the thing is: on hover the img get colored and it appears a little icon in the bottom left coner, the trigger that is now under the img should be this little icon, because the icon is from the css definition in uk-overlay-icon (from the font awesome)
I dont now how to set the info class on this icon.
Or I was trying put an div with the info class over the img at the position of the icon and than trigger it, but than the colored effekt dont show when I trigger it, so I thought there must be a way to trigger the div on hover and not lose the colored effect, so the trigger div would trigger the Info and musst trigger the hover from the img at the same time
PS: Sorry for the long css !
The <figure> element is intended to mark up diagrams, illustrations, photos, code examples and similar content, "that can be moved away from the main flow of the document without affecting the document’s meaning" (http://w3c.github.io/html-reference/figure.html).
Your way of using it seems to be against this specification.
It's your own responsibility to code according to specification and best practices.
I just opted with your provided example: https://jsfiddle.net/e8qd8gvf/4/
I moved the uk-overlay-icon outside of the figure, added the toggle-info class and put the info box inside it.
All that was left was adding some CSS:
.uk-position-cover { cursor: default; }
.uk-panel-teaser { position: relative; }
.toggle-info {
display: none;
cursor: pointer;
position: absolute; bottom: 20px; left: 20px;
width: 30px; height: 30px;
}
.toggle-info > .info {
width: 150px; height: 150px;
border: 2px solid red;
position: absolute; bottom: -20px; left: 10px;
transform: translateY(100%);
}
.toggle-info, .info { display: inline-block !important; }
.toggle-info.hidden, .info.hidden { display: none !important; }
as well as changing your JS to:
jQuery(document).ready(function() {
jQuery(".uk-overlay").hover(
function() {
jQuery(this).next(".toggle-info").removeClass("hidden");
},
function() {
jQuery(this).next(".toggle-info").addClass("hidden");
}
);
jQuery(".toggle-info").hover(
function() {
jQuery(this)
.removeClass("hidden")
.children(".info").removeClass("hidden");
},
function() {
jQuery(this)
.addClass("hidden")
.children(".info").addClass("hidden");
}
);
});
 
My solution is only showing you a way to accomplish things and is by far not "nice". You need to adapt it yourself and to specifications.

Changing positioning of elements depending on user screen size. How do I stack these elements for mobile devices?

I'm currently designing a website and there's a problem regarding the website footer.
When viewed on Desktop, the footer looks like this:
Website Footer viewed on Desktop
The code used to create this look is:
<meta name="color:Footer Background Color" content="#000000">
CSS CODE
/*-----------------------------
footer
-----------------------------*/
.bottom-footer {
background-color: solid #ffffff;
}
.bottom-footer, .bottom-footer a, .back-to-top a {
color: solid #000000;
}
.footer-message {
display:flex;
justify-content:space-between;
list-style-type:none;
width:500px;
}
.bottom-footer {
clear: both;
height: 80px;
width: 100%;
position: relative;
bottom: 0;
z-index: 1
}
.bottom-footer p {
font-size: 1.4rem
}
.footer-message {
float: left;
margin-top: 33px;
margin-left: 20px
}
.creation {
float: right;
display: block;
margin-top: 33px;
margin-right: 20px;
font-size: 1.4rem
}
.back-to-top {
position: absolute;
margin-top: 20px;
text-align: center;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
width: 30px
}
.back-to-top a {
font-size: 3rem;
-webkit-transition: all .4s ease-in-out;
-moz-transition: all .4s ease-in-out;
transition: all .4s ease-in-out
}
.back-to-top a:hover {
opacity: .5;
text-decoration: none
}
.back-to-top .fa-angle-up {
font-size: 4rem
}
footer.bottom-footer {
height: 150px
}
.footer-message {
padding: 40px 0 0
}
.creation,
padding: 10px 0 0
}
.creation,
.footer-message {
float: none;
text-align: center;
margin: 0
}
.back-to-top {
margin-top: 0;
top: 0
}
HTML CODE
<footer class="bottom-footer">
<p class="footer-message">
Home
About
News
Musings
Music
Media
Shows
Store
Contact
Ask
</p>
<a class="back-to-top" href='#'>^<i class="fa fa-angle-up"></i></a>
<div class="creation" style="text-decoration:none">
© 2016 Sam Joel Nang. All Rights Reserved.
</div>
</footer>
Now the problem is, when (for example) the window's width is decreased, the footer elements seem to scatter, the .creation element goes out of the footer and goes below.
What I want to do (when website is viewed in small window width, or on Mobile Devices screens) is to 'center' and 'stack' the footer elements (.footer-message, .back-to-top, and .creation) in the following order: top: .back-to-top, middle: .footer-message, and bottom: .creation, with the Footer Background Color still #ffffff. A small photo edit can represent what I mean:
Ideal Website Footer look on Mobile Device or small Desktop window width
I hope someone can help me. Thank you so much.
Introducing media queries
In order to achieve what you're looking for, you can use media queries in CSS.
For example, if you want to stack the footer elements at a screen width of 480px or less, the following media query will allow you to style for that scenario only:
#media (max-width: 480px) {
// Styles here
}
Given that, let's get on to the point of stacking. You have different position attributes currently on the elements you're trying to stack. The easiest way to stack elements on top of one another is to use the properties display: block; and float: left;. This way, the elements will span the width of their container and appear in the order they are in inside the document's HTML.
Let's take a look at how you might go about that:
#media (max-width: 480px) {
.footer-message {
float: left;
display: block;
}
// center the links inside footer-message
.footer-message a {
text-align: center;
width: 100%;
}
.creation {
margin: 0 auto; // center it
display: block;
}
.back-to-top {
position: relative; // absolute positioning removes the element from document flow so we want to go relative
display: block;
margin: 0 auto; // center it
}
}
Note I simply removed the other properties since they're applied at all screen sizes already. You may want to alter those inside this media query in case the new styles affect their layout or you'd like it to differ for mobile.
Hope that helps!
UPDATE: I just noticed the part about you wanting to center the elements, I've added some code above to do so.

Disable Anchor Within Hover Div on Mobile Until Open

I've searched high and low but can't find a solution to this exact problem.
On a desktop browser, when the user hovers over an image, a div appears and they can click the link within the div if they want. However, on a mobile device, the hover is triggered by a click. If the user clicks in just the right spot, even though the div isn't visible yet, they can accidentally click the anchor and navigate away from the page. (In other words, the div goes from display:none to display:block at the same time that the link is clicked.)
I want to prevent that accidental click from happening on mobile browsers, however I still want the link to be usable once the div is visible.
My code:
<style>
.staffpic {
position: relative;
width: 33.33333%;
height: auto;
}
.staffpic:hover .popup {
display: block;
}
.staffpic img {
display: block;
width: 110px;
height: 110px;
margin: 0 auto;
}
.popup {
display:none;
position: absolute;
bottom: 0;
left: -5px;
width: 100%;
height: 100%;
box-sizing: border-box;
padding: 15px;
background-color: rgba(255, 153, 0, 0.9);
color: #fff;
text-transform: uppercase;
}
</style>
<div class="staffpic">
<img src="/wp-content/uploads/image.jpg" />
<div class="popup">
John Smith, Director<br/>
CityName | Email John
</div>
</div>
Any ideas? HTML, CSS, JS and jQuery solutions are all welcome! (Maybe something more clever than what I can think of using pointer-events:none along with some jQuery?)
I'm actually about to encounter the same problem in a project, and jotted down a potential solution. Haven't tested it yet but it might help you out. The link should only trigger if the element has a display that's not 'none':
var popup = $('.popup'),
display = popup.css('display');
if (!(display === 'none')) {
popup.on('click', function(e) {
e.preventDefault();
});
}
I found a solution but it's not elegant. I wanted to post it in case someone has this problem in the future and just needs something that will work!
I added a fake link in a span with the real link then set new display styles for it and the real link based on the parent span is being hovered over.
<style>
.staffpic {
position: relative;
width: 33.33333%;
height: auto;
}
.staffpic:hover .popup {
display: block;
}
.staffpic img {
display: block;
width: 110px;
height: 110px;
margin: 0 auto;
}
.staffpic a {
display: none; /* Added */
}
.staffpic.link:hover a {
display: inline; /* Added */
}
.staffpic.link:hover .fakelink {
display: none; /* Added */
}
.popup {
display:none;
position: absolute;
bottom: 0;
left: -5px;
width: 100%;
height: 100%;
box-sizing: border-box;
padding: 15px;
background-color: rgba(255, 153, 0, 0.9);
color: #fff;
text-transform: uppercase;
}
</style>
<div class="staffpic">
<img src="/wp-content/uploads/image.jpg" />
<div class="popup">
John Smith, Director<br/>
CityName | <span class="link">Email John<span class="fakelink">Email John</span></span>
</div>
</div>
I'd still love a cleaner solution without all this added html if someone has it.

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