I'm trying to do image "carousel" with horizontal scroll. Pure HTML + CSS without JS.
This is my HTML:
<div class="slideshow">
<figure class="slideshow__fig">
<img src="img/hilti-png.png" alt="" class="slideshow__fig-img">
<figcaption>Fig.1 - Trulli, Puglia, Italy.</figcaption>
</figure>
<figure class="slideshow__fig">
<img src="img/hilti-png.png" alt="" class="slideshow__fig-img">
<figcaption>Fig.1 - Trulli, Puglia, Italy.</figcaption>
</figure>
<figure class="slideshow__fig">
<img src="img/hilti-png.png" alt="p" class="slideshow__fig-img">
<figcaption>Fig.1 - Trulli, Puglia, Italy.</figcaption>
</figure>
</div>
This is my css:
.slideshow {
display: flex;
flex-wrap: nowrap;
overflow-y: hidden;
overflow-x: scroll;
//width: 80vw;
//margin: auto;
&::-webkit-scrollbar {
width: 350px;
height: 10px;
}
/* Track */
&::-webkit-scrollbar-track {
background: #f1f1f1;
}
/* Handle */
&::-webkit-scrollbar-thumb {
background: #888;
border-radius: 500px;
}
/* Handle on hover */
&::-webkit-scrollbar-thumb:hover {
background: #555;
}
&__fig {
flex: 0 0 auto;
height: 900px;
&-img{
height: 100%;
//width: 100%;
display: block;
}
}
}
1 - The problem is when I set the width of the .slideshow to 80vw, then naturally the scrollbar is shorter, but my images are cropped and not going full display width. When I try to adjust the width of the scrollbar with ::-webkit-scrollbar {width: 350px or 50vw or ...} exactly nothing happens.
I would like to have a scrollbar which is not full width of the div which I'm scrolling, but somehow can't figure it out.
2 - The other problem is I would like to have a figcaption at the bottom left side of the image. But somehow it doesn't show when the horizontal scroll is there. Any suggestions?
Here is the example how I would like to have it:
example image
edit: Now I finally managed to do it by adding:
&::-webkit-scrollbar-button:end:increment {
width: 50%;
display: block;
background: transparent;
}
But now the problem is that the scrollbar is not in middle, but on the left side. Margin:auto doesn't help. No idea how else to do it.
Also making img size 90% revealed the caption which is not that bad solution.
Now the only question is how to put the scroll bar in the centre.
Here is something close to the image you provided as an example. Sorry, but I really don't know how this can be achieved respecting the Pure HTML + CSS without JS criteria. I think it isn't possible at all.
So here, it uses jQuery and jQuery-ui draggable.
It uses a draggable div contained within its parent. Ondrag, it calculates the "scrolled" percentage to apply it to the scrollable width of the image slider.
For mobiles... I added the "touch punch" patch for jQuery-ui. More details about it here. I also placed the "initialisation code" in a function, so it can run on load AND on resize.
$(document).ready(function(){
function initDisplay(){
let slide_scrollWidth = $("#slide")[0].scrollWidth;
let customScrollbar_width = $("#sliderScroll_outer")[0].scrollWidth;
let percent = slide_scrollWidth/customScrollbar_width
$("#sliderScroll").css({"width":percent+"%", "left":0})
$("#slide")[0].scrollTo(0,0)
}
// On page load
initDisplay()
// Useful for mobile orientation change
window.onresize = initDisplay
$("#sliderScroll").draggable({
containment: "#sliderScroll_outer",
scroll: false,
drag: function(e){
let parentOffset = $(e.target).parent().offset().left
let offset = $(e.target).offset().left
let scrollableWidth = $(e.target).parent().width() - $(e.target).width()
let sliderPercent = (offset-parentOffset)/scrollableWidth
//console.log(sliderPercent)
let imageSliderWidth = $("#slide")[0].scrollWidth - $("#slide").width()
//console.log(imageSliderWidth)
$("#slide")[0].scrollTo(sliderPercent*imageSliderWidth,0)
}
});
});
#container{
margin: 1em;
}
#slide{
display: flex;
overflow: hidden;
}
#slide img{
margin: 0 0.5em;
}
#sliderScroll_outer{
width: 40vw;
background: lightgrey;
margin: 1em;
}
#sliderScroll{
width: 0vw;
height: 10px;
background: green;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui-touch-punch/0.2.2/jquery.ui.touch-punch.min.js"></script>
<div id="container">
<div id="slide">
<img src="https://via.placeholder.com/800x600.png">
<img src="https://via.placeholder.com/400x600.png">
<img src="https://via.placeholder.com/1000x600.png">
</div>
<div id="sliderScroll_outer">
<div id="sliderScroll"></div>
</div>
</div>
Run in full page mode or CodePen
I have a mostly responsive Wordpress website with some images aligned either left or right. I want to remove the float property of these aligned images when they occupy a percentage of the screen (about %50) as it's causing issues with how the text is displayed (one word next to an image, then followed by the rest of the paragraph).
When I remove the float property I get exactly the behaviour I want from the website, but I don't know how to set it so it only triggers under these conditions.
Below is the CSS for the affected images.
img {
display: inline-block;
max-width: 100%;
}
.align-right {
float: right;
}
You should use javascript to calculate the width of window and compare to width of image.
function myFunction() {
var img = document.getElementById("Image");
var div = document.getElementById("myDiv");
if (img.offsetWidth > window.innerWidth / 2) {
div.style.cssFloat = "none";
}
else {
div.style.cssFloat = "right";
}
}
img {
display: inline-block;
max-width: 100%;
width: 400px;
background-color: lightgrey;
height: 200px;
}
<body onresize="myFunction()" onload="myFunction()">
<div>
<img id="Image" src="" alt="Image" />
<div id="myDiv" style="background-color: lightgrey;">
Hello This is Div.
</div>
</div>
</body>
Show the result in full page for your better results.
Here is an example chat app ->
The idea here is to have the .messages-container take up as much of the screen as it can. Within .messages-container, .scroll holds the list of messages, and in case there are more messages then the size of the screen, scrolls.
Now, consider this case:
The user scrolls to the bottom of the conversation
The .text-input, dynamically gets bigger
Now, instead of the user staying scrolled to the bottom of the conversation, the text-input increases, and they no longer see the bottom.
One way to fix it, if we are using react, calculate the height of text-input, and if anything changes, let .messages-container know
componentDidUpdate() {
window.setTimeout(_ => {
const newHeight = this.calcHeight();
if (newHeight !== this._oldHeight) {
this.props.onResize();
}
this._oldHeight = newHeight;
});
}
But, this causes visible performance issues, and it's sad to be passing messages around like this.
Is there a better way? Could I use css in such a way, to express that when .text-input-increases, I want to essentially shift up all of .messages-container
2:nd revision of this answer
Your friend here is flex-direction: column-reverse; which does all you ask while align the messages at the bottom of the message container, just like for example Skype and many other chat apps do.
.chat-window{
display:flex;
flex-direction:column;
height:100%;
}
.chat-messages{
flex: 1;
height:100%;
overflow: auto;
display: flex;
flex-direction: column-reverse;
}
.chat-input { border-top: 1px solid #999; padding: 20px 5px }
.chat-input-text { width: 60%; min-height: 40px; max-width: 60%; }
The downside with flex-direction: column-reverse; is a bug in IE/Edge/Firefox, where the scrollbar doesn't show, which your can read more about here: Flexbox column-reverse and overflow in Firefox/IE
The upside is you have ~ 90% browser support on mobile/tablets and ~ 65% for desktop, and counting as the bug gets fixed, ...and there is a workaround.
// scroll to bottom
function updateScroll(el){
el.scrollTop = el.scrollHeight;
}
// only shift-up if at bottom
function scrollAtBottom(el){
return (el.scrollTop + 5 >= (el.scrollHeight - el.offsetHeight));
}
In the below code snippet I've added the 2 functions from above, to make IE/Edge/Firefox behave in the same way flex-direction: column-reverse; does.
function addContent () {
var msgdiv = document.getElementById('messages');
var msgtxt = document.getElementById('inputs');
var atbottom = scrollAtBottom(msgdiv);
if (msgtxt.value.length > 0) {
msgdiv.innerHTML += msgtxt.value + '<br/>';
msgtxt.value = "";
} else {
msgdiv.innerHTML += 'Long long content ' + (tempCounter++) + '!<br/>';
}
/* if at bottom and is IE/Edge/Firefox */
if (atbottom && (!isWebkit || isEdge)) {
updateScroll(msgdiv);
}
}
function resizeInput () {
var msgdiv = document.getElementById('messages');
var msgtxt = document.getElementById('inputs');
var atbottom = scrollAtBottom(msgdiv);
if (msgtxt.style.height == '120px') {
msgtxt.style.height = 'auto';
} else {
msgtxt.style.height = '120px';
}
/* if at bottom and is IE/Edge/Firefox */
if (atbottom && (!isWebkit || isEdge)) {
updateScroll(msgdiv);
}
}
/* fix for IE/Edge/Firefox */
var isWebkit = ('WebkitAppearance' in document.documentElement.style);
var isEdge = ('-ms-accelerator' in document.documentElement.style);
var tempCounter = 6;
function updateScroll(el){
el.scrollTop = el.scrollHeight;
}
function scrollAtBottom(el){
return (el.scrollTop + 5 >= (el.scrollHeight - el.offsetHeight));
}
html, body { height:100%; margin:0; padding:0; }
.chat-window{
display:flex;
flex-direction:column;
height:100%;
}
.chat-messages{
flex: 1;
height:100%;
overflow: auto;
display: flex;
flex-direction: column-reverse;
}
.chat-input { border-top: 1px solid #999; padding: 20px 5px }
.chat-input-text { width: 60%; min-height: 40px; max-width: 60%; }
/* temp. buttons for demo */
button { width: 12%; height: 44px; margin-left: 5%; vertical-align: top; }
/* begin - fix for hidden scrollbar in IE/Edge/Firefox */
.chat-messages-text{ overflow: auto; }
#media screen and (-webkit-min-device-pixel-ratio:0) {
.chat-messages-text{ overflow: visible; }
/* reset Edge as it identifies itself as webkit */
#supports (-ms-accelerator:true) { .chat-messages-text{ overflow: auto; } }
}
/* hide resize FF */
#-moz-document url-prefix() { .chat-input-text { resize: none } }
/* end - fix for hidden scrollbar in IE/Edge/Firefox */
<div class="chat-window">
<div class="chat-messages">
<div class="chat-messages-text" id="messages">
Long long content 1!<br/>
Long long content 2!<br/>
Long long content 3!<br/>
Long long content 4!<br/>
Long long content 5!<br/>
</div>
</div>
<div class="chat-input">
<textarea class="chat-input-text" placeholder="Type your message here..." id="inputs"></textarea>
<button onclick="addContent();">Add msg</button>
<button onclick="resizeInput();">Resize input</button>
</div>
</div>
Side note 1: The detection method is not fully tested, but it should work on newer browsers.
Side note 2: Attach a resize event handler for the chat-input might be more efficient then calling the updateScroll function.
Note: Credits to HaZardouS for reusing his html structure
You just need one CSS rule set:
.messages-container, .scroll {transform: scale(1,-1);}
That's it, you're done!
How it works: First, it vertically flips the container element so that the top becomes the bottom (giving us the desired scroll orientation), then it flips the content element so that the messages won't be upside down.
This approach works in all modern browsers. It does have a strange side effect, though: when you use a mouse wheel in the message box, the scroll direction is reversed. This can be fixed with a few lines of JavaScript, as shown below.
Here's a demo and a fiddle to play with:
//Reverse wheel direction
document.querySelector('.messages-container').addEventListener('wheel', function(e) {
if(e.deltaY) {
e.preventDefault();
e.currentTarget.scrollTop -= e.deltaY;
}
});
//The rest of the JS just handles the test buttons and is not part of the solution
send = function() {
var inp = document.querySelector('.text-input');
document.querySelector('.scroll').insertAdjacentHTML('beforeend', '<p>' + inp.value);
inp.value = '';
inp.focus();
}
resize = function() {
var inp = document.querySelector('.text-input');
inp.style.height = inp.style.height === '50%' ? null : '50%';
}
html,body {height: 100%;margin: 0;}
.conversation {
display: flex;
flex-direction: column;
height: 100%;
}
.messages-container {
flex-shrink: 10;
height: 100%;
overflow: auto;
}
.messages-container, .scroll {transform: scale(1,-1);}
.text-input {resize: vertical;}
<div class="conversation">
<div class="messages-container">
<div class="scroll">
<p>Message 1<p>Message 2<p>Message 3<p>Message 4<p>Message 5
<p>Message 6<p>Message 7<p>Message 8<p>Message 9<p>Message 10<p>Message 11<p>Message 12<p>Message 13<p>Message 14<p>Message 15<p>Message 16<p>Message 17<p>Message 18<p>Message 19<p>Message 20
</div>
</div>
<textarea class="text-input" autofocus>Your message</textarea>
<div>
<button id="send" onclick="send();">Send input</button>
<button id="resize" onclick="resize();">Resize input box</button>
</div>
</div>
Edit: thanks to #SomeoneSpecial for suggesting a simplification to the scroll code!
Please try the following fiddle - https://jsfiddle.net/Hazardous/bypxg25c/. Although the fiddle is currently using jQuery to grow/resize the text area, the crux is in the flex related styles used for the messages-container and input-container classes -
.messages-container{
order:1;
flex:0.9 1 auto;
overflow-y:auto;
display:flex;
flex-direction:row;
flex-wrap:nowrap;
justify-content:flex-start;
align-items:stretch;
align-content:stretch;
}
.input-container{
order:2;
flex:0.1 0 auto;
}
The flex-shrink value is set to 1 for .messages-container and 0 for .input-container. This ensures that messages-container shrinks when there is a reallocation of size.
I've moved text-input within messages, absolute positioned it to the bottom of the container and given messages enough bottom padding to space accordingly.
Run some code to add a class to conversation, which changes the height of text-input and bottom padding of messages using a nice CSS transition animation.
The JavaScript runs a "scrollTo" function at the same time as the CSS transition is running to keep the scroll at the bottom.
When the scroll comes off the bottom again, we remove the class from conversation
Hope this helps.
https://jsfiddle.net/cnvzLfso/5/
var doScollCheck = true;
var objConv = document.querySelector('.conversation');
var objMessages = document.querySelector('.messages');
var objInput = document.querySelector('.text-input');
function scrollTo(element, to, duration) {
if (duration <= 0) {
doScollCheck = true;
return;
}
var difference = to - element.scrollTop;
var perTick = difference / duration * 10;
setTimeout(function() {
element.scrollTop = element.scrollTop + perTick;
if (element.scrollTop === to) {
doScollCheck = true;
return;
}
scrollTo(element, to, duration - 10);
}, 10);
}
function resizeInput(atBottom) {
var className = 'bigger',
hasClass;
if (objConv.classList) {
hasClass = objConv.classList.contains(className);
} else {
hasClass = new RegExp('(^| )' + className + '( |$)', 'gi').test(objConv.className);
}
if (atBottom) {
if (!hasClass) {
doScollCheck = false;
if (objConv.classList) {
objConv.classList.add(className);
} else {
objConv.className += ' ' + className;
}
scrollTo(objMessages, (objMessages.scrollHeight - objMessages.offsetHeight) + 50, 500);
}
} else {
if (hasClass) {
if (objConv.classList) {
objConv.classList.remove(className);
} else {
objConv.className = objConv.className.replace(new RegExp('(^|\\b)' + className.split(' ').join('|') + '(\\b|$)', 'gi'), ' ');
}
}
}
}
objMessages.addEventListener('scroll', function() {
if (doScollCheck) {
var isBottom = ((this.scrollHeight - this.offsetHeight) === this.scrollTop);
resizeInput(isBottom);
}
});
html,
body {
height: 100%;
width: 100%;
background: white;
}
body {
margin: 0;
padding: 0;
}
.conversation {
display: flex;
flex-direction: column;
justify-content: space-between;
height: 100%;
position: relative;
}
.messages {
overflow-y: scroll;
padding: 10px 10px 60px 10px;
-webkit-transition: padding .5s;
-moz-transition: padding .5s;
transition: padding .5s;
}
.text-input {
padding: 10px;
-webkit-transition: height .5s;
-moz-transition: height .5s;
transition: height .5s;
position: absolute;
bottom: 0;
height: 50px;
background: white;
}
.conversation.bigger .messages {
padding-bottom: 110px;
}
.conversation.bigger .text-input {
height: 100px;
}
.text-input input {
height: 100%;
}
<div class="conversation">
<div class="messages">
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is a message content
</p>
<p>
This is the last message
</p>
<div class="text-input">
<input type="text" />
</div>
</div>
</div>
You write;
Now, consider this case:
The user scrolls to the bottom of the conversation
The .text-input, dynamically gets bigger
Wouldn't the method that dynamically sets the .text-input be the logical place to fire this.props.onResize().
To whom it may concern,
The answers above did not suffice my question.
The solution I found was to make my innerWidth and innerHeight variable constant - as the innerWidth of the browser changes on scroll to adapt for the scrollbar.
var innerWidth = window.innerWidth
var innerHeight = window.innerHeight
OR FOR REACT
this.setState({width: window.innerWidth, height: window.innerHeight})
In other words, to ignore it, you must make everything constant as if it were never scrolling. Do remember to update these on Resize / Orientation Change !
IMHO current answer is not a correct one:
1/ flex-direction: column-reverse; reverses the order of messages - I didn't want that.
2/ javascript there is also a bit hacky and obsolete
If you want to make it like a PRO use spacer-box which has properties:
flex-grow: 1;
flex-basis: 0;
and is located above messages. It pushes them down to the chat input.
When user is typing new messages and input height is growing the scrollbar moves up, but when the message is sent (input is cleared) scrollbar is back at bottom.
Check my snippet:
body {
background: #ccc;
}
.chat {
display: flex;
flex-direction: column;
width: 300px;
max-height: 300px;
max-width: 90%;
background: #fff;
}
.spacer-box {
flex-basis: 0;
flex-grow: 1;
}
.messages {
display: flex;
flex-direction: column;
overflow-y: auto;
flex-grow: 1;
padding: 24px 24px 4px;
}
.footer {
padding: 4px 24px 24px;
}
#chat-input {
width: 100%;
max-height: 100px;
overflow-y: auto;
border: 1px solid pink;
outline: none;
user-select: text;
white-space: pre-wrap;
overflow-wrap: break-word;
}
<div class="chat">
<div class="messages">
<div class="spacer-box"></div>
<div class="message">1</div>
<div class="message">2</div>
<div class="message">3</div>
<div class="message">4</div>
<div class="message">5</div>
<div class="message">6</div>
<div class="message">7</div>
<div class="message">8</div>
<div class="message">9</div>
<div class="message">10</div>
<div class="message">11</div>
<div class="message">12</div>
<div class="message">13</div>
<div class="message">14</div>
<div class="message">15</div>
<div class="message">16</div>
<div class="message">17</div>
<div class="message">18</div>
</div>
<div class="footer">
<div contenteditable role="textbox" id="chat-input"></div>
</div>
<div>
Hope I could help :)
Cheers
I have a map image, and I want to zoom in/out when I click on it. This code below zooms it, but I want to zoom-in the image centered around the location of the cursor and make horizontal-scroll appear. How can I do it with only CSS?
CSS
input[type=checkbox]{
display: none;
}
.container img{
transition: transform 0.25s ease;
cursor: zoom-in;
}
input[type=checkbox]:checked ~ label > img{
-webkit-transform: scale(2);
transform: scale(2);
cursor: zoom-out;
}
HTML
<div class="container"><input id="zoomCheck" type="checkbox" />
<label for="zoomCheck">
<img src="map.jpg" />
</label></div>
I created you the logic you can use. Just add the other functionality.
Basically, this is what you want.
Fiddle: https://jsfiddle.net/zpobnetf/11/
How can you achieve it?
Get position of click (clientX, clienY)
Clone the image into a div with background image (src of the image clicked)
Position them depending on the position that was clicked on.
As you can see on my example. I subtract clientX and clientY by 75. It's because the box that I created has a size of 150x150. I just divide it by 2. So, I can position the #box at the center.
Hope you get it. Cheers! You can do it. Just believe!
let mapa = document.getElementById('map'),
box = document.getElementById('box');
mapa.addEventListener('click', (e) => {
let xPos = (e.clientX - 75),
yPos = (e.clientY - 75);
box.style.display = 'initial';
box.style.top = `${yPos}px`;
box.style.left = `${xPos}px`;
box.style.backgroundPosition = `-${xPos}px -${yPos}px`;
});
#box {
height: 150px;
width: 150px;
background: rgba(255,255,255,0.8);
background-image: url('https://www.gstatic.com/images/branding/googlelogo/2x/googlelogo_color_284x96dp.png');
background-repeat: no-repeat;
transform: scale(1.4);
position: absolute;
display: none;
}
<img id="map" src="https://www.gstatic.com/images/branding/googlelogo/2x/googlelogo_color_284x96dp.png">
<div id="box"></div>
In my php page dynamically visualize the thumbnails. To make sure that these are all of the same size I do in this way
<a class="zoom" href="...">
<img src="thumb/default.png" width="130" style="background-image:url(thumb/<?php echo $images_jpg;?>);" class="centered" />
</a>
CSS
img.centered {
background-repeat: no-repeat;
background-position: center center;
}
/* 1 attempt */
a.zoom:hover {
background-image: url(thumb/zoom.jpg);
}
/* 2 attempt */
a.zoom img:hover {
background-image: url(thumb/zoom.jpg);
}
I would like to display a different image on event: hover, but this does not work. How could I do that? thanks
You could always do it like this.
HTML:
<div class="image" style="background-image:url(http://www.randomwebsite.com/images/head.jpg);">
<div class="overlay"></div>
</div>
CSS:
.image {
width: 200px;
height: 200px;
border: 1px solid;
}
.overlay {
width: 100%;
height: 100%;
}
.overlay:hover {
background: url(http://1.bp.blogspot.com/-lJWLTzn8Zgw/T_D4aeKvD9I/AAAAAAAACnM/SnupcVnAsNk/s1600/Random-wallpapers-random-5549791-1280-800.jpg);
}
So here we have the image you are getting via PHP on top as a div. And inside we have the overlay, the image you want when a user is hovering. So we set that to 100% width and height so it takes up all of the parent div and set the hover.
DEMO HERE
In your example the <img> always lays over the <a> background-image.
To avoid that, you could hide the image on hover. But that is kinda ugly ;)
a.zoom:hover {
background-image: url(thumb/zoom.jpg);
}
a.zoom:hover img
{
opacitiy: 0;
}
try this
<img class="centered" src="thumb/default.png"/>
and jquery
$(".centered").attr("src","second.jpg");