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How to add a fading animation to my sldieshow

I have been trying to make this animation fade and not change abruptly, any ideas?
I tried this code:
<script>
var i = 0;
var images = [];
var slideTime = 3000; // 3 seconds
images[0] = '/includes/img/inmobg1.webp';
images[1] = '/includes/img/inmobg2.jpg';
function changePicture() {
document.getElementById('bg_static').style.backgroundImage = 'url(' + images[i] + ')';
if (i < images.length - 1) {
i++;
} else {
i = 0;
}
setTimeout(changePicture, slideTime);
}
window.onload = changePicture;
</script>
#bg_static{ background: #3d3d3d; background-position:bottom; background-size: cover; background-color:#000; background-repeat: no-repeat; height: 340px; width: 100%; left: 0; margin-left: 0; top: 60px; position: absolute; z-index: -1001; }
<div id="bg_static"></div>

You didn't provide enough info but i think you want something like this:
.fade-in {
animation: fadeIn ease 5s;
-webkit-animation: fadeIn ease 5s;
-moz-animation: fadeIn ease 5s;
-o-animation: fadeIn ease 5s;
-ms-animation: fadeIn ease 5s;
}
#keyframes fadeIn{
0% {
opacity:0;
}
100% {
opacity:1;
}
}
#-moz-keyframes fadeIn {
0% {
opacity:0;
}
100% {
opacity:1;
}
}
#-webkit-keyframes fadeIn {
0% {
opacity:0;
}
100% {
opacity:1;
}
}
#-o-keyframes fadeIn {
0% {
opacity:0;
}
100% {
opacity:1;
}
}
#-ms-keyframes fadeIn {
0% {
opacity:0;
}
100% {
opacity:1;
}
}
/* The style below is just for the appearance of the example div */
.style {
width:90vw; height:90vh;
text-align:center;
padding-top:calc(50vh - 50px);
margin-left:5vw;
border:4px double #F00;
background-color:#000;
}
.style p {
color:#fff;
font-size:50px;
}
<div class="style fade-in">
<p>[content]</p>
</div>
User css animation and add animation class to that element whenever you want to animate the element.

How can I smoothly stretch and shrink a revolving line arc?

Google's Material Design spinners shring and stretch while rotating:
I have found the following SVG spinner which implements it pretty well here: https://codepen.io/svnt/pen/qraaRN.
HTML:
<svg class="spinner" viewBox="0 0 50 50"><circle class="path" cx="25" cy="25" r="20" fill="none" stroke-width="5"></circle></svg>
CSS:
/* SVG spinner icon animation */
.spinner {
-webkit-animation: rotate 2s linear infinite;
animation: rotate 2s linear infinite;
z-index: 2;
position: absolute;
top: 50%;
left: 50%;
margin: -25px 0 0 -25px;
width: 50px;
height: 50px;
}
.spinner .path {
stroke: #cccccc;
stroke-linecap: round;
-webkit-animation: dash 1.5s ease-in-out infinite;
animation: dash 1.5s ease-in-out infinite;
}
#-webkit-keyframes rotate {
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
#keyframes rotate {
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
#-webkit-keyframes dash {
0% {
stroke-dasharray: 1, 150;
stroke-dashoffset: 0;
}
50% {
stroke-dasharray: 90, 150;
stroke-dashoffset: -35;
}
100% {
stroke-dasharray: 90, 150;
stroke-dashoffset: -124;
}
}
#keyframes dash {
0% {
stroke-dasharray: 1, 150;
stroke-dashoffset: 0;
}
50% {
stroke-dasharray: 90, 150;
stroke-dashoffset: -35;
}
100% {
stroke-dasharray: 90, 150;
stroke-dashoffset: -124;
}
}
The thing is, the #keyframes animation uses stroke-dasharray and stroke-dashoffset which seem to run on the main UI thread as if I do some tasks with JavaScript while the animation is running, the spinner looses its smoothness and becomes jerky.
The rotation (via transform) works pretty well, and I know it runs off the UI thread, so even if I perform some JS task the rotation will be smooth while animating.
Of course, I can just implement a rotating spinner without the stretch/shrink stuff, but I was wondering if someone of you knows how to make such animations always look smooth. Is there a way to stretch and shrink the spinner using transform while it rotates?
Hope I was clear. Thanks for the attention!

You can simulate this using different elements where the idea is to hide the first one using the other. The only drawback is the transparency.
Here is an example where you can adjust the different values to get the needed animation. Used CSS variable for simplicity but it's not mandatory.
.loading {
width:50px;
height:50px;
position:fixed;
top:calc(50% - 25px);
left:calc(50% - 25px);
border-radius:50%;
border:5px solid blue;
animation:load 2s linear infinite;
}
.loading:before,
.loading:after,
.loading span:before,
.loading span:after{
content:"";
position:absolute;
top:-6px;
left:-6px;
right:-6px;
bottom:-6px;
border-radius:50%;
border:7px solid transparent;
border-left-color:white;
animation:hide 1.2s infinite;
}
.loading span:before {
--r:90deg;
}
.loading span:after {
--r:180deg;
}
.loading:before {
--r:260deg; /* a little less than 270deg to keep some border visible */
}
#keyframes load {
to {
transform:rotate(360deg);
}
}
#keyframes hide {
50% {
transform:rotate(var(--r,0deg));
}
100% {
transform:rotate(360deg);
}
}
<div class="loading">
<span></span>
</div>
With transparency you can create the border using 4 elements that you rotate to make them above each other and shrink the overal shape. Basically the opposite logic of the first code (we change what was blue with transparent and what was white with blue)
The only drawback is that you cannot shrink less that the length of one side
.loading {
width:50px;
height:50px;
position:fixed;
top:calc(50% - 25px);
left:calc(50% - 25px);
animation:load 2s linear infinite;
}
.loading:before,
.loading:after,
.loading span:before,
.loading span:after{
content:"";
position:absolute;
top:0;
left:0;
right:0;
bottom:0;
border-radius:50%;
border:5px solid transparent;
border-left-color:blue;
animation:hide 1.2s infinite;
}
.loading span:before {
--r:90deg;
}
.loading span:after {
--r:180deg;
}
.loading:before {
--r:200deg;
}
#keyframes load {
to {
transform:rotate(360deg);
}
}
#keyframes hide {
50% {
transform:rotate(var(--r,0deg));
}
100% {
transform:rotate(360deg);
}
}
body {
background:linear-gradient(to right,pink,orange);
}
<div class="loading">
<span></span>
</div>
To better understand what is happening in both codes, remove the main rotation and use different color for borders
.loading {
width:50px;
height:50px;
position:fixed;
top:calc(50% - 25px);
left:calc(50% - 25px);
/* animation:load 2s linear infinite;*/
}
.loading:before,
.loading:after,
.loading span:before,
.loading span:after{
content:"";
position:absolute;
top:0;
left:0;
right:0;
bottom:-0;
border-radius:50%;
border:5px solid transparent;
border-left-color:blue;
animation:hide 4s infinite;
}
.loading span:before {
--r:90deg;
border-left-color:red;
}
.loading span:after {
--r:180deg;
border-left-color:green;
}
.loading:before {
--r:260deg;
border-left-color:yellow;
}
#keyframes load {
to {
transform:rotate(360deg);
}
}
#keyframes hide {
50% {
transform:rotate(var(--r,0deg));
}
100% {
transform:rotate(360deg);
}
}
body {
background:linear-gradient(to right,pink,orange);
}
<div class="loading">
<span></span>
</div>

Repeating the whole css sequence in loop

I have a piece of a code which animates text within a div. I want this whole animation to repeat in loop. It's important to keep all files internal as it's going to be a GoogleAds advert and they don't accept external links. Ideally if that can be done using CSS or plain javascript (not jquery)
Here is the code:
* {
font-family: 'Comfortaa'
}
.ad {
margin: 0 auto;
overflow: hidden;
position: relative;
color: #3a3a3a;
background: #0E6AAD;
width: 300px;
height: 250px;
background-size: 300px 250px;
}
.h1-background {
color: white;
text-align: center;
}
h1 {
font-family: 'Baloo';
position: relative;
padding: 10px;
padding-bottom: 0;
font-size: 24px;
font-weight: normal;
margin: 0;
z-index: 1;
}
h2 {
position: relative;
padding: 0 10px;
font-size: 16px;
z-index: 1;
}
<div class="ad">
<div class="h1-background">
<h1 class="slide-up-fade-in">Title
<h1>
<h2 class="slide-up-fade-in delay-2">subtitle subtitle subtitle</h2>
</div>
<button id="cta" class="slide-up-fade-in delay-1">
read more
</button>
</div>
jfiddle here
Thank you for help.

I hope this is what you are expecting.
setInterval(function(){
document.getElementById("cta").classList.remove("slide-up-fade-in");
document.getElementById("cta").classList.remove("delay-1");
document.getElementById("subtitle").classList.remove("slide-up-fade-in");
document.getElementById("subtitle").classList.remove("delay-2");
document.getElementById("title").classList.remove("slide-up-fade-in");
}, 2900);
setInterval(function(){
document.getElementById("title").classList.add("slide-up-fade-in");
document.getElementById("subtitle").classList.add("slide-up-fade-in");
document.getElementById("subtitle").classList.add("delay-2");
document.getElementById("cta").classList.add("slide-up-fade-in");
document.getElementById("cta").classList.add("delay-1");
}, 3000);
* {
font-family:'Comfortaa'
}
.ad{
margin:0 auto;
overflow:hidden;
position:relative;
color:#3a3a3a;
background: #0E6AAD;
width:300px; height:250px;
background-size: 300px 250px;
}
.h1-background{
color:white;
text-align:center;
}
h1{
font-family:'Baloo';
position:relative;
padding:10px;
padding-bottom:0;
font-size:24px;
font-weight:normal;
margin:0;
z-index:1;
}
h2{
position:relative;
padding:0 10px;
font-size:16px;
z-index:1;
}
button{
padding:10px 20px;
font-size:12px;
background-color:#4285f4;
border:none;
color:white;
position:fixed;
cursor:pointer;
border-radius:50px;
width:180px;
left: 50%;
margin-left: -90px; /*half the width*/
z-index:9999;
top:210px;
}
.slide-up-fade-in{
animation: slide-up-fade-in ease 0.5s infinite;
animation-iteration-count: 1;
transform-origin: 50% 50%;
animation-fill-mode:forwards; /*when the spec is finished*/
-webkit-animation: slide-up-fade-in ease 0.5s infinite;
-webkit-animation-iteration-count: 1;
-webkit-transform-origin: 50% 50%;
-webkit-animation-fill-mode:forwards; /*Chrome 16+, Safari 4+*/
-moz-animation: slide-up-fade-in ease 0.5s infinite;
-moz-animation-iteration-count: 1;
-moz-transform-origin: 50% 50%;
-moz-animation-fill-mode:forwards; /*FF 5+*/
-o-animation: slide-up-fade-in ease 0.5s infinite;
-o-animation-iteration-count: 1;
-o-transform-origin: 50% 50%;
-o-animation-fill-mode:forwards; /*Not implemented yet*/
-ms-animation: slide-up-fade-in ease 0.5s infinite;
-ms-animation-iteration-count: 1;
-ms-transform-origin: 50% 50%;
-ms-animation-fill-mode:forwards; /*IE 10+*/
opacity:0;
opacity: 1\9;
}
.delay-1{animation-delay: 0.25s;}
.delay-2{animation-delay: 0.5s;}
#keyframes slide-up-fade-in{
0% {
opacity:0;
transform: translate(0px,60px) ;
}
100% {
opacity:1;
transform: translate(0px,0px) ;
}
}
#-moz-keyframes slide-up-fade-in{
0% {
opacity:0;
-moz-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-moz-transform: translate(0px,0px) ;
}
}
#-webkit-keyframes slide-up-fade-in {
0% {
opacity:0;
-webkit-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-webkit-transform: translate(0px,0px) ;
}
}
#-o-keyframes slide-up-fade-in {
0% {
opacity:0;
-o-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-o-transform: translate(0px,0px) ;
}
}
#-ms-keyframes slide-up-fade-in {
0% {
opacity:0;
-ms-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-ms-transform: translate(0px,0px) ;
}
}
<div class="ad">
<div class="h1-background">
<h1 id="title" class="slide-up-fade-in">Title<h1>
<h2 id="subtitle" class="slide-up-fade-in delay-2">subtitle subtitle subtitle</h2>
</div>
<button id="cta" class="slide-up-fade-in delay-1">
read more
</button>
</div>
or in jsfidle : https://jsfiddle.net/hbw1uetr/22/
EDIT
If you want to loop n times you need to specify when you want to destroy the setInterval function. Tou can find the updated jsfiddle https://jsfiddle.net/hbw1uetr/59/
function setIntervalX(callback, delay, repetitions) {
var x = 0;
var intervalID = window.setInterval(function () {
callback();
if (++x === repetitions) {
window.clearInterval(intervalID);
}
}, delay);
}
setIntervalX(function () {
document.getElementById("cta").classList.remove("slide-up-fade-in");
document.getElementById("cta").classList.remove("delay-1");
document.getElementById("subtitle").classList.remove("slide-up-fade-in");
document.getElementById("subtitle").classList.remove("delay-2");
document.getElementById("title").classList.remove("slide-up-fade-in");
}, 2900, 2);
setIntervalX(function () {
document.getElementById("title").classList.add("slide-up-fade-in");
document.getElementById("subtitle").classList.add("slide-up-fade-in");
document.getElementById("subtitle").classList.add("delay-2");
document.getElementById("cta").classList.add("slide-up-fade-in");
document.getElementById("cta").classList.add("delay-1");
}, 3000, 2); //2 is the number of repition
* {
font-family:'Comfortaa'
}
.ad{
margin:0 auto;
overflow:hidden;
position:relative;
color:#3a3a3a;
background: #0E6AAD;
width:300px; height:250px;
background-size: 300px 250px;
}
.h1-background{
color:white;
text-align:center;
}
h1{
font-family:'Baloo';
position:relative;
padding:10px;
padding-bottom:0;
font-size:24px;
font-weight:normal;
margin:0;
z-index:1;
}
h2{
position:relative;
padding:0 10px;
font-size:16px;
z-index:1;
}
button{
padding:10px 20px;
font-size:12px;
background-color:#4285f4;
border:none;
color:white;
position:fixed;
cursor:pointer;
border-radius:50px;
width:180px;
left: 50%;
margin-left: -90px; /*half the width*/
z-index:9999;
top:210px;
}
.slide-up-fade-in{
animation: slide-up-fade-in ease 0.5s infinite;
animation-iteration-count: 1;
transform-origin: 50% 50%;
animation-fill-mode:forwards; /*when the spec is finished*/
-webkit-animation: slide-up-fade-in ease 0.5s infinite;
-webkit-animation-iteration-count: 1;
-webkit-transform-origin: 50% 50%;
-webkit-animation-fill-mode:forwards; /*Chrome 16+, Safari 4+*/
-moz-animation: slide-up-fade-in ease 0.5s infinite;
-moz-animation-iteration-count: 1;
-moz-transform-origin: 50% 50%;
-moz-animation-fill-mode:forwards; /*FF 5+*/
-o-animation: slide-up-fade-in ease 0.5s infinite;
-o-animation-iteration-count: 1;
-o-transform-origin: 50% 50%;
-o-animation-fill-mode:forwards; /*Not implemented yet*/
-ms-animation: slide-up-fade-in ease 0.5s infinite;
-ms-animation-iteration-count: 1;
-ms-transform-origin: 50% 50%;
-ms-animation-fill-mode:forwards; /*IE 10+*/
opacity:0;
opacity: 1\9;
}
.delay-1{animation-delay: 0.25s;}
.delay-2{animation-delay: 0.5s;}
#keyframes slide-up-fade-in{
0% {
opacity:0;
transform: translate(0px,60px) ;
}
100% {
opacity:1;
transform: translate(0px,0px) ;
}
}
#-moz-keyframes slide-up-fade-in{
0% {
opacity:0;
-moz-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-moz-transform: translate(0px,0px) ;
}
}
#-webkit-keyframes slide-up-fade-in {
0% {
opacity:0;
-webkit-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-webkit-transform: translate(0px,0px) ;
}
}
#-o-keyframes slide-up-fade-in {
0% {
opacity:0;
-o-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-o-transform: translate(0px,0px) ;
}
}
#-ms-keyframes slide-up-fade-in {
0% {
opacity:0;
-ms-transform: translate(0px,60px) ;
}
100% {
opacity:1;
-ms-transform: translate(0px,0px) ;
}
}
<div class="ad">
<div class="h1-background">
<h1 id="title" class="slide-up-fade-in">Title<h1>
<h2 id="subtitle" class="slide-up-fade-in delay-2">subtitle subtitle subtitle</h2>
</div>
<button id="cta" class="slide-up-fade-in delay-1">
read more
</button>
</div>

try this:
.slide-up-fade-in{
animation: slide-up-fade-in ease 4s;
animation-iteration-count: infinite;
animation-delay: 0.25s;
}
.delay-1{animation-delay: 0.25s;}
.delay-2{animation-delay: 0.25s;}

I have found another way of doing this (looping 3 times):
.slide-up-fade-in{
animation: slide-up-fade-in ease 5s;
animation-iteration-count: 3;
animation-delay: 1.25s;
}
.delay-1{animation-delay: 1.25s;}
.delay-2{animation-delay: 1.5s;}
#keyframes slide-up-fade-in{
0% {
opacity:0;
transform: translate(0px,60px) ;
}
10% {
opacity:1;
transform: translate(0px,0px) ;
}
100% {
opacity:1;
transform: translate(0px,0px) ;
}
}
for looping forever, replace animation0iteration-count from 3 to infinite

Website Fading Effect not Working in Internet Explorer

For some reason, my website's fading & positioning work and look great in Chrome & Firefox but Internet Explorer is not showing the fading effect at all and the alignment is all messed up. here's the coding:
/* fade slider */
.slides {
height:600px;
margin:0px auto;
overflow:hidden;
position:relative;
width:900px;
}
.slides ul {
list-style:none;
position:relative;
}
/* keyframes #anim_slides */
#-webkit-keyframes anim_slides {
0% {
opacity:0;
}
6% {
opacity:1;
}
24% {
opacity:1;
}
30% {
opacity:0;
}
100% {
opacity:0;
}
}
#-moz-keyframes anim_slides {
0% {
opacity:0;
}
6% {
opacity:1;
}
24% {
opacity:1;
}
30% {
opacity:0;
}
100% {
opacity:0;
}
}
#keyframes anim_slides {
0% {
opacity:0;
}
6% {
opacity:1;
}
24% {
opacity:1;
}
30% {
opacity:0;
}
100% {
opacity:0;
}
}
.slides ul li {
opacity:0;
position:absolute;
top:0;
/* css3 animation */
-webkit-animation-name: anim_slides;
-webkit-animation-duration: 24.0s;
-webkit-animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
-webkit-animation-direction: normal;
-webkit-animation-delay: 0;
-webkit-animation-play-state: running;
-webkit-animation-fill-mode: forwards;
-moz-animation-name: anim_slides;
-moz-animation-duration: 24.0s;
-moz-animation-timing-function: linear;
-moz-animation-iteration-count: infinite;
-moz-animation-direction: normal;
-moz-animation-delay: 0;
-moz-animation-play-state: running;
-moz-animation-fill-mode: forwards;
animation-name: anim_slides;
animation-duration: 24.0s;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: normal;
animation-delay: 0;
animation-play-state: running;
animation-fill-mode: forwards;
}
/* css3 delays */
.slides ul li:nth-child(2), .slides ul li:nth-child(2) div {
-webkit-animation-delay: 6.0s;
-moz-animation-delay: 6.0s;
animation-delay: 6.0s;
}
.slides ul li:nth-child(3), .slides ul li:nth-child(3) div {
-webkit-animation-delay: 12.0s;
-moz-animation-delay: 12.0s;
animation-delay: 12.0s;
}
.slides ul li:nth-child(4), .slides ul li:nth-child(4) div {
-webkit-animation-delay: 18.0s;
-moz-animation-delay: 18.0s;
animation-delay: 18.0s;
}
.slides ul li:nth-child(5), .slides ul li:nth-child(5) div {
-webkit-animation-delay: 24.0s;
-moz-animation-delay: 24.0s;
animation-delay: 24.0s;
}
.slides ul li img {
display:block;
}
/* keyframes #anim_titles */
#-webkit-keyframes anim_titles {
0% {
left:100%;
opacity:0;
}
5% {
left:10%;
opacity:1;
}
20% {
left:10%;
opacity:1;
}
25% {
left:100%;
opacity:0;
}
100% {
left:100%;
opacity:0;
}
}
#-moz-keyframes anim_titles {
0% {
left:100%;
opacity:0;
}
5% {
left:10%;
opacity:1;
}
20% {
left:10%;
opacity:1;
}
25% {
left:100%;
opacity:0;
}
100% {
left:100%;
opacity:0;
}
}
#keyframes anim_titles {
0% {
left:100%;
opacity:0;
}
5% {
left:10%;
opacity:1;
}
20% {
left:10%;
opacity:1;
}
25% {
left:100%;
opacity:0;
}
100% {
left:100%;
opacity:0;
}
}
and you can check out the html coding for positioning by checking out the website- http://metroanimalshelter.org/
Any help here would be greatly appreciated.

You are only including the -webkit and -moz prefixed CSS properties, which will only work in webkit and mozilla browsers respectively. In every place you include the prefixes, you need to also include an unprefixed property. For example:
.slides ul li:nth-child(2), .slides ul li:nth-child(2) div {
-webkit-animation-delay: 6.0s;
-moz-animation-delay: 6.0s;
animation-delay: 6.0s;
}
It's also worth noting that this will only work in IE10 and 11. Versions of IE before that did not support CSS animations. http://caniuse.com/#feat=css-animation

I would recommend you to use autoprefixer instead set up vendor prefixes for every browser.
Less to write and easy to maintain your code
https://github.com/postcss/autoprefixer

Convert jquery animation to CSS3

HTML:
<div id="slick-slidetoggle">wxyz</div>
<div id="slickbox" >abcd</div>​
JS
// hides the slickbox as soon as the DOM is ready (a little sooner that page load)
var hoverVariable=false;
var hoverVariable2=false;
$('#slickbox').hide();
$('#slick-slidetoggle').mouseover(function() {
hoverVariable2=true;
$('#slickbox').slideToggle(600);
return false;
})
$('#slick-slidetoggle').mouseleave(function() {
hoverVariable2=false;
setTimeout(function (){
if(!hoverVariable && !hoverVariable2){
$('#slickbox').slideToggle(600);
return false;}
}, 1000);
})
$('#slickbox').mouseleave(function() {
hoverVariable=false;
setTimeout(function (){
if(!hoverVariable && !hoverVariable2){
$('#slickbox').slideToggle(600);
return false;}
return false;
}, 1000);
})
$('#slickbox').mouseover(function() {
hoverVariable2=false;
hoverVariable=true;
})​
CSS
#slickbox {
background: black;
width:100px;
height: 135px;
display: none;
cursor:pointer;
color:white;
}
#slick-slidetoggle{
background: yellow;
width:100px;
height: 135px;
cursor:pointer;
color:black;
}
​
Now the above functionality is what I want to achieve using purely CSS, which is when I hover over the "wxyz" button "abcd" button should come down and stay visible even is mouse is moved away from "wxyz" for 3 secs.
I tried transition delay with display property but apparently that doesn't work on display property, then I tried position:absolute & visibility & transition delay of visibility, but then the appearance of button got delayed by 3 secs not the hidnig.
I want the "abcd" button to hide after 3 secs of moving the button away from "wxyz" using only CSS or CSS3

Here is an Example (Code here)
(I have written only -webkit, but you could add the other prefixes)
#test2 {
position:absolute;
z-index:1;
background: black;
width:100px;
height: 135px;
opacity: 0;
cursor:pointer;
color:white;
opacity:0;
-webkit-animation-duration: 600ms;
-webkit-animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
-webkit-animation-fill-mode: both;
}
#test {
position:absolute;
z-index:2;
background: yellow;
width:100px;
height: 135px;
cursor:pointer;
color:black;
}
.container {
position:relative;
}
.container:hover #test2 {
opacity:1;
-webkit-animation-name: slideDown;
}
.container:not(:hover) > #test2 {
-webkit-animation-delay:1000ms;
-webkit-animation-name: slideUp;
opacity:1;
}
#-webkit-keyframes slideDown {
0% {
-webkit-transform: translateY(0);
}
100% {
-webkit-transform: translateY(135px);
}
}
#-webkit-keyframes slideUp {
0% {
-webkit-transform: translateY(135px);
}
100% {
-webkit-transform: translateY(0);
}
}

Here is a cross browser solution:
Tested on OPERA-SAFARI-CHROME-MAXTHON-FIREFOX
HTML:
<div class="container">
<div id="test">wxyz</div>
<div id="test2" >abcd</div>
</div>
CSS:
#test {
width:100px;
height:100px;
background:yellow;
position:relative;
z-index:2;
}
#test2 {
top:-100px;
width:100px;
height:100px;
background:black;
color:white;
position:relative;
z-index:1;
}
.container:hover #test2 {
top:0px;
transition-property:top;
transition-duration:0.2s;
transition-timing-function: linear;
/* Firefox 4 */
-moz-transition-property:top;
-moz-transition-duration:0.2s;
-moz-transition-timing-function:linear;
/* Safari and Chrome */
-webkit-transition-property:top;
-webkit-transition-duration:0.2s;
-webkit-transition-timing-function:linear;
/* Opera */
-o-transition-property:top;
-o-transition-duration:0.2s;
-o-transition-timing-function:linear;
/* IE */
-ms-transition-property:top;
-ms-transition-duration:0.2s;
-ms-transition-timing-function:linear;
}
.container:not(:hover) #test2 {
top:-100px;
transition-property:top;
transition-duration:0.2s;
transition-timing-function: linear;
transition-delay: 3s;
/* Firefox 4 */
-moz-transition-property:top;
-moz-transition-duration:0.2s;
-moz-transition-timing-function:linear;
-moz-transition-delay:3s;
/* Safari and Chrome */
-webkit-transition-property:top;
-webkit-transition-duration:0.2s;
-webkit-transition-timing-function:linear;
-webkit-transition-delay:3s;
/* Opera */
-o-transition-property:top;
-o-transition-duration:0.2s;
-o-transition-timing-function:linear;
-o-transition-delay:3s;
/* IE */
-ms-transition-property:top;
-ms-transition-duration:0.2s;
-ms-transition-timing-function:linear;
-ms-transition-delay:3s;
}
Fiddle: http://jsfiddle.net/BerkerYuceer/2gVLX/

Use the transition to do it as below:
<head>
<style>
#outer {
width: 100px;
height: 50px;
background-color: green;
position: relative;
}
#innerOne {
width: 100px;
height: 50px;
background-color: blue;
}
#innerTwo {
width: 100px;
height: 50px;
background-color: red;
position: absolute;
top: -150px;
left: 100px;
}
#outer:hover #innerTwo {
top: 0px;
-webkit-transition: top 2s ease-out;
-moz-transition: top 2s ease-out;
-o-transition: top 2s ease-out;
transition: top 2s ease-out;
}
#innerTwo:not(hover) {
-webkit-transition: top 1s ease-in 3s;
-moz-transition: top 1s ease-in 3s;
-o-transition: top 1s ease-in 3s;
transition: top 1s ease-in 3s;
}
</style>
</head>
<body>
<div id="outer">
<div id="innerOne">wxyz</div>
<div id="innerTwo">abcd</div>
</div>
</body>
</html>