First of all I have to say that I'm working on website which I can only manipulate its CSS.
So, please don't suggest me a javascript/html solution.
Here is my problem,
You can see in this jsFiddle demo, there is a basic toggle display method but it doesn't have a transitions effect on default CSS. The HTML is exactly like that, and I don't have a permission to change its HTML or javascript, I can only play with CSS.
I want to add CSS 3 Transitions effect to this toggle method.
As Jim Jeffers's answer on this question, transitions effect never works on
display: block < - > display: none
So I will always need to keep the element display block.
I tried this but it didn't work,
.infocontent {
-webkit-transition: opacity 1s ease-out;
}
div[style='display: block; '].infocontent {
opacity: 1; height: auto !important;
}
div[style='display: none; '].infocontent {
display:block !important; opacity: 0; height: 0px;
}
Why isn't it working? How can I do that?
Try to use transition on max-height instead of height.
Related
Is there any animation support in Angular Bootstrap? I'm not seeing any built-in way to slide a collapse element in, out, up or down. It just pops when activated.
There is currently no support for animation in the ng-bootstrap Collapse, however it looks like it's on the roadmap (source: https://github.com/ng-bootstrap/ng-bootstrap/issues/295).
As it stands, you can add animations by using CSS - please see this demo for an example.
I've added the following CSS to the collapse-basic component in the demo which will fade in/out the element when the Toggle button is clicked:
.collapse, .collapse.show {
display: block;
transition: all 1s linear;
}
.collapse {
opacity: 0;
height: 0;
}
.collapse.show {
opacity: 1;
}
I am looking for the way to smoothly hide html element and then remove it at all to deny any interaction with hidden elements. I change css property "opacity" from 1 to 0.00001 to do this. The problem is that element hide, but it's still on the screen and user can hover it. Is it possible to remove transparent element using display:none without JavaScript? I tried to do this with CSS attribute selectors, but it does not work.
.element[opacity^=0.00001] {
display:none;
}
http://jsfiddle.net/DkX3L/
Since you're probably already using JavaScript to hide the elements, the best method would be to use that to stop the interaction as well. But since you've asked for a CSS solution, you could use this (IE11+):
.element {
-webkit-transition: 2s;
transition: 2s;
}
.element:hover { /* .element.hidden */
opacity: 0;
pointer-events: none; /* <-- This one */
}
DEMO
I'm back at it, this time trying to tackle using CSS3 transitions in place of jQuery based transitions, using Modernizr as a backup for browser compatibility.
I'm setting up my base class with the following:
.box { transition: left 0.5s ease; }
.box-left { left: calc(left - 300px); }
.box-right { left: calc(left + 300px); }
In jQuery, I'm using toggleClass when a "next" or "previous" button is clicked.
You can see I'm attempting to add or subract from the current left value, but it's obviously not working that way.
Any pointers? I hope I'm being clear enough about my question.
Thanks!
EDIT:
I'm giving calc() a shot, but I have no idea what would go onto the left side of the operator.
I found the solution. So, like before, I define the transition in CSS:
.box { transition: left 0.5s ease; left: 0px; }
But, when it comes time to animate, I use jQuery to update the style attribute with a calculated left value:
$('.box').css({'left':-(currentLeft) * multiplier});
Please advise if i'm confused but is there any point of having a transition on visibility? Opacity creates a neat effect, sure. But the change none to block will be from nada to full immediately. Maybe we can spread its occurrence sometime in a time interval but the transition will happen all at once. Or am i mistaken?
Here's the code i'm creating. Should i keep the last three lines in the first style?
div.contentItem{
border: 2px solid #00bb00;
border-radius: 20px;
background-color: Beige;
padding: 10px;
-webkit-transition: visibility 3.0s, opacity 3.0s;
-moz-transition: visibility 3.0s, opacity 3.0s;
-o-transition: visibility 3.0s, opacity 3.0s;
}
div.contentItemHidden{
opacity: 0;
}
div.contentItemVisible{
opacity: 1;
}
Before, i had block styles in the two last clauses but that actually damaged the transition of the opacity (probably due to the fact that display: none causes the elements not to be opacitable at all).
div.contentItemHidden{
display: none;
opacity: 0;
}
div.contentItemVisible{
display: block;
opacity: 1;
}
Yes, there is a point to having a transition on visibility. If you just use opacity on an element, that element will still be there and will block clicks and hover effects on whatever is below it. With visibility: hidden, the element will no longer be visible (similar to opacity: 0), but cannot be clicked.
Here is a link that helps to explain in more detail why using visibility and opacity together may be necessary, and how to do so correctly: http://www.greywyvern.com/?post=337
As a side note, I noticed that you mention visibility in your question, but have display in your code. I'd like to note that there is a difference between visibility and display. In particular, elements visibility: hidden are not visible but still take up space. Elements with display: none are not visible but do not take up space.
I want to change the background color of the page when one hovers over a button/div tag using only CSS3 transitions. I want the color to come gradually and hence would like to use a transition effect, but I don't know how to relate the background color of the page to a hover event on a div. Can someone please help me with my code ? Thank You
This is not currently possible in CSS3.
In the future (CSS4?), you'll be able to do it as follows:
body {
background-color: red;
transition: background-color 1s ease;
}
$body #theButton:hover {
background-color: green;
}
Note the $ in the second selector; It indicates which element the CSS block applies to. Unfortunately, there's not even a single implementation of this yet, so you'll have to resort to Javascript (which I assume you know how to do. If not, just ask).
Update (using jQuery):
CSS:
body {
background: red;
transition: background-color 1s ease;
}
body.hover {
background: green;
}
Javascript:
$('#theButton').hover(function(){
$('body').addClass('hover');
}, function(){
$('body').removeClass('hover');
});
Here's the fiddle: http://jsfiddle.net/mWY88/1/
For maximum efficiency, you should cache your selectors.
In fact, you can change the body background-color very easily with CSS3 transition animation like I'm doing it here. I got the logic from here.