Trigger second animation keyframe (or move div permanently) with CSS animations? - css

I've tried searching for a solution to this problem, but haven't found one yet.
What I'm trying to do is simple:
When I click one button, I'd like a box to move 200px to the right with CSS transitions. When I click a second button, I'd like the box to move 200px down from the position it is currently in.
I have this basic code here:
HTML
<button class="one">First</button>
<button class="two">Second</button>
<div class="box"></div>
CSS
.box {
width: 100px;
height: 100px;
background-color: red;
transition: transform 2s;
}
.box.transOne {
transform: translateX(200px);
}
.box.transTwo {
transform: translateY(200px);
}
JS
$(".one").click(function() {
$(".box").toggleClass("transOne");
});
$(".two").click(function() {
$(".box").toggleClass("transTwo");
})
However, when I click on button number two, the box does move 200 down, but it moves diagonally back to the first X axis position while it's going down (I.e. it doesn't stay 200px over on the X axis).
Is there a way I can possibly do this with keyframes? Like triggering a second keyframe with a second button click, etc. Or is there a better way? I'm pretty stumped and can't find any solutions, so any help is much appreciated. Thanks!

SHORT ANSWER
set the translation X in class .transTwo too
.box.transTwo {
transform: translate(200px 200px);
}
EXPLANATION
the transform is overriding the others, this is the nature behaviour of the css, just like other property color, background-color,
The basic rule is the latest property set is the strongest, the strongest is at inline style unless you implement !important

Related

Hold end animation width if clicked after a hover animation with CSS

I have a list of items with an indicator that expands on hover using simple CSS animations, see the jsfiddle below.
https://jsfiddle.net/jsiman/p9kqoc8h/8/
#keyframes indicator-hover-on {
0% {
width: 10px;
}
100% {
width: 20px;
}
}
#keyframes indicator-hover-off {
0% {
width: 20px;
}
100% {
width: 10px;
}
}
When a section is clicked, I want that indicator to remain expanded. Any hovers on other sections will still trigger the animation but I want to be able to show an "active" indicator state. When another section is clicked, it will show the "active" indicator state and the old one will transition back to the unexpanded state.
Is this possible with pure CSS transitions? I know how to achieve this functionality using d3.js and I want to stay away from jQuery.
i do not think that's possible.
from your question it sounds like you want it to happen during a click.
click event is something that is captured by javascript, or any other way that implements javascript, i do not know any other way to catch events.

Can divs below a css transform move along with divs above?

I am using css transitions to lay out a bunch of divs on top of each other. At any point, one of the divs may collapse. And all of the divs below it are supposed to move up to fill its spot.
Here is a codepen that describes the situation.
The css I am using is the following:
div {
height: 100px;
width: 100px;
margin: 15px;
}
.top {
background-color: red;
transform-origin: top;
animation: move 2s infinite;
}
.bottom {
background-color: blue;
}
#keyframes move {
0% {
transform: rotateX(0deg);
}
50% {
transform: rotateX(90deg);
}
}
With this, the top div will expand and contract. I want the divs below it to move up as the top one collapses.
If I switch transform for height, like this:
#keyframes move {
0% {
height 0;
}
50% {
height: 100px;
}
}
The bottom divs do move, but this is not a good solution for me because in the actual application, each div has a dynamically calculated size.
How can the bottom divs move smoothly with the top div?
With transform you won't be able to do that, as when an element is transformed, the surrounding elements won't see any change in the DOM, as DOM-wise nothing have happened.
What you can do to optimize it all, is to prepare the browser that the height will change, with the property will-change: height
MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/will-change
This new CSS property aim's to do what transform does, make smoother and more optimized animations.
Do note though:
will-change is intended to be used as a last resort, in
order to try to deal with existing performance problems. It should not
be used to anticipate performance problems.
Another possible solution (read hack), is to trick the browser to use GPU instead of CPU, shown in this answer (see its p.1):
CSS `will-change` - how to use it, how it works
Updated
In case of the height is auto, or similar, this will work with the max-height trick, and here is a couple of answers of mine, showing how-to:
CSS Animation on max-height change
Can't use the same animation in reverse for class toggle
CSS transition auto width
And the last resort, if none of the above is applicable, is to use a small script and either create a styles dynamically (links below), or set them inline.
Dynamically styling pseudo-elements using jQuery or Javascript
How to prevent css from getting converted to inline css

How to create a menu that rolls down? CSS

Example:
<div id="one">
(content)
</div>
<div id="two">
<ul>............</ul>
</div>
I want to create an effect that appears that #two is comming down from #one, I tried using transitions so when I :hover over #one so #two would appear to be coming down from #one but the content stayed there while only the background changed in size, I want the whole list to appear to be coming down from #one like in this website: http://merryweddings.com/
If you know the size of the div that will pop up, you can do a simple transition on the 'height' property, like this:
http://jsfiddle.net/BeDQr/
You also could use the transition on the 'max-height' property and set it to a very large value.
#two {
max-height: 0;
overflow: hidden;
transition-property: max-height;
transition: all 1s ease-in-out;
}
.wrapper:hover #two {
max-height: 500px;
}
But in this case, the end of the animation might be a bit abrupt.
You might want to use JQuery for this instead of pure CSS.
Check out this example : http://labs.abeautifulsite.net/jquery-dropdown/
This link also shows a lot of possible JQuery solutions.
See this link here: How can I transition height: 0; to height: auto; using CSS?
Also see the link in the first answer of the above link which is here: Can you use CSS3 to transition from height:0 to the variable height of content?
This, unfortunately is the only solution you have for a pure CSS method. The second link shows a sort of workaround or a hack. The first gives some further details.

How can I stop a CSS3 animation from jumping back to the beginning when finished

I have a CSS3 animation, that simply moves a <div> down (via top: 0px; to top: 300px;). But my problem is, I don't know how to prevent the <div> from returning to the top when the animation is finished. Is there a way I can prevent this?
Here's a sample fiddle: http://jsfiddle.net/y8tJ7/
You need to invert the animation like so.
#keyframes move {
from{
top: 20px;
}
}
See http://jsfiddle.net/gleezer/y8tJ7/1/
This way its finishing position is specified in the div styling and you only specify the beginning state in the keyframe.
EDIT: Another way of achieving it could be to simply add:
animation-fill-mode: forwards.
See this other fiddle.
Some more info about it on Mozilla Dev Network.

CSS3 vs. JavaScript

So I'm trying to create an animation on a webpage and am trying to figure out a way to do it using CSS3, but am quite confused as to how I can do it.
What I need to have happen is when users click on a link element I want a div to expand and be populated with content specific to the link element clicked. For example, when a user clicks on a link titled "About", a div below the link element will expand and have some content appear. THEN, when they click another link, say "Contact", the content specific to "About" will disappear and content specific to "Contact" will appear as the div re-sizes to fit the new content.
I think I can do this pretty easily with Javascript, but can someone tell me if it might be easier to do/possible with CSS3?
Thanks all.
As already mentioned, JavaScript is your best friend for this. But since you asked if it would be possible with CSS3 I had to give it a try. Basically what I’ve done is I’ve used the target selector to trigger the animation. So when you click a link, a div expands with some content and if you click another link a new div, with some new content (positioned in the same place) expands, creating the illusion that it’s the same div expanding.
It’s not an optimal solution and I made this example really quick so it’s not working exactly as you wanted, but it gives you at least a picture on how it could be done with just CSS.
Hope that helps!
Here's a demo and here's the code from my example:
HTML
Box<br />Box two
<div id="box">Hello</div>
<div id="boxtwo">Hello again,</div>
CSS
#box, #boxtwo{
position: absolute;
top: 50px;
left: 50px;
width: 0px;
height: 0px;
background-color: #e3e3e3;
color: transparent;
}
#box:target {
-webkit-animation: expand 1.0s ease-in forwards;
}
#boxtwo:target {
-webkit-animation: expand 1.0s ease-in forwards;
}
#-webkit-keyframes expand {
0% {width: 0px; height: 0px; color: transaprent;}
50% {width: 100px; height: 100px; color: transparent;}
100% {width: 100px; height: 100px; color: #000000;}
}
The simplest way for a click to trigger an animation is to add a CSS class to an object upon the click and have an CSS3 transition or animation configured for any object with that class.
Your second class to hide the item can then remove that class name from the same object.
All the details of the animation/transition would be specified in CSS3 style rules. Only the add/remove of the class name would be done with javascript.
CSS3 all by itself can trigger animations/transitions with the :hover pseudo selector, but isn't a lot more capable than that and can't trigger an animation based on a click.
I don't think this is a CSS3 vs. JavaScript question. Even if you use CSS3 for the animations, you're likely to need JavaScript to trigger the animations based on a click event.
Based on what you need to do, I see a couple of main options:
As #jfriend00 said, add or remove CSS classes which perform the animation.
Use jQuery's show, hide, fadeIn, fadeOut, and animate APIs.
What you need is some juery to spice up whatever you are developing... If am not wrong you want some thing like this: CSS3 vs Jquery
Get the jquery library and reference it in your page.
here is a snippet to jump start you.
<a id="home" href="home.html">Home</a>
<a id="about" href="about.html">About</a>
<div id="home_div"></div>
<div id="about_div"></div>
<script type="text/javascript">
$('#home').click(function () {
$('html').animate({ scrollTop: 500 }, 1000);
$('#home_div').animate().show('slow');
$('#about_div').animate().fadeOut('slow');
return false;
});
$('#about').click(function () {
$('html').animate({ scrollTop: 500 }, 1000);
$('#home_div').animate().fadeOut('slow');
$('#about_div').animate().show('slow');
return false;
});
</script>
You can change the effects to other available ones.

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