I came across #keyframes somewhere in css3 codes. I couldn't find about it in much detail in stackoverflow. Even this question answers the # rules except #keyframes.
Can somebody explain or provide a good link about #keyframes in detail?
Thanks in advance.
Have a read of: http://css3.bradshawenterprises.com/animations/
They just set the parameters for different stages of an animation, this lets you perform complex animations using CSS.
The #keyframes at-rule is intended to define a CSS3 animation and usually has vendor prefixes in the real CSS code, since the standardization/implementation dust hasn't settled down yet. You can find more about WebKit's implementation (#-webkit-keyframes) from their blog post... or about the general stuff here.
Related
In MDN References for CSS transitions, there is a line in the grammar section referring to a transition that is named linear but takes arguments.
<linear-easing-function> =
linear( <linear-stop-list> )
But I could not find any documentation or example of using it anywhere online. Is it possible that it's just in CSS grammar, but it's not implemented in the engine for some reason?
It’s a draft, part of CSS Easing Functions Level 2. It’s only implemented in Firefox Nightly so far.
Today I was having a hard time to find out a bug and then it turns out that one of my animation name was the exactly same with a bootstrap animation and it was overriding it.
So, in my example I've defined
#keyframes fadeIn {
// something different than bootstrap one
}
Since fadeIn was already defined in bootstrap this definition was overriding that. So, I thought it would be cool if we can define animations in 'local scope' or so but I couldn't find any results on web. Is there a thing like that or does anyone have any suggestion about what can be done while naming animations to be on the secure side?
I'm really not sure if this question should be here, if not, please forgive me, but I'm intrigued in the reason why Chrome/Safari still prefix CSS3 animations, given that any other major browser supports them as standart, some even since a long time. (IE +9, Firefox +15, Opera +12.0 according to this)
#keyframes anim{}
#-webkit-keyframes anim{}
div{
animation:anim;
-webkit-animation:anim;
}
Is it still considered an experimental technology?
Thanks!
#-webkit-keyframes animation{
0%{background-image:url(img/bg.jpg);}
25%{background-image:url(img/bg1.jpg);}
50%{background-image:url(img/bg2.jpg);}
75%{background-image:url(img/bg3.jpg);}
100%{background-image:url(img/bg4.jpg);}
}
I already know about changing the -webkit- with -moz- and all, it's not what i'm asking, i just want to know how to get this to work on Mozilla and Explorer, because for some reason i don't understand it doesn't
Unfortunately, background images cannot be changed in #keyframes animations.(Except in Chrome) The reason is that images cannot be changed step-by-step Like background colors. Your best bet would be to place all the images on top of each other using position:absolute; and then change their opacity using #keyframes. A SO question about it can be found here
Making CSS slideshows using opacity is a little harder and requires more coding but are still quite easy.
There are some good tutorials out there about it- try these:
http://themarklee.com/2013/10/16/simple-crossfading-slideshow-css/
http://cssnerd.com/2011/10/04/pure-css3-slideshow/
There is also some really neat thing you can do using some jquery as well:
http://css3.bradshawenterprises.com/cfimg/
Does somebody know a little Javascript librabry that will mimic CSS3 transitions for browsers like Firefox 3.6 or IE8?
Example:
-webkit-transition:left 1s ease-in;
I guess such a library is quite hard to develop.
These two support a lot but no CSS3 transitions:
CSSsandpaper
CSSPie
And then we have Modernizr but it only does feature testing.
The great thing about having an extra mini library for CSS3 transitions support is that you don't need to write your own backup code. You could just plug it in and be sure that those transitions work in most browsers.
YOu can try using JQuery animation to mimic the effect, but it still requires some coding. Nothing as simple as CSS3 code for transitions ;(
I was looking for the same library and didn't succeed, so I decided to create it.
Hope that's what you wanted - alevkon / smooth.
Recently I've open sourced a JavaScript library that may help your with your question. It and published under http://transitionjs.org
It allows you to quickly apply CSS transition on elements from JavaScript without editing your CSS. For example, to execute CSS transition you mentioned in your question you would simply write:
transitionjs.begin(element, 'left 0px 100px 1s ease-in');
note: you will need to provide the start and end values of the transition.