Spinning an image using rotateY - css

Question

I'd like to spin an image and I came across this video https://www.youtube.com/watch?v=nD8xqlh6Esk which gave a very simple way to spin a div on a click. I thought this would be a great method to spin an image on a page load with minimal css so tried using a :after as opposed to a :click (with 720 deg) but that didn't work. Has anyone got this approach to work on a page load rather than on a click? I've seen other methods but they need quite a bit more css.
Detail provided
[Apparently my youtube link is to a football match although for me it's to a LevelUp Tuts CSS Experiments #1 - Card Flipping Effect video.]
Basically, he flips a card through a simple transform on a hover as follows:
<div class="card"></div>
.card {
background: blue;
width: 200px;
height: 200px;
}
.card:hover {
transform: rotateY (90deg);
}
So you can spin the div with a single line, a transform, on a hover. There's no need for keyframes.

Answer 1

Try this:
div {
width: 100px;
height: 100px;
background: red;
animation: spin 2s infinite;
-webkit-animation: spin 2s infinite;
}
#keyframes spin{
to{
transform: rotate(360deg);
}
}
#-webkit-keyframes spin{
to{
transform: rotate(360deg);
}
<div id="d"></div>
EDIT: is this more like what you wanted?
div {
width: 100px;
height: 100px;
background: red;
animation: spin 2s forwards;
-webkit-animation: spin 2s forwards;
}
#keyframes spin{
to{
transform: rotateY(90deg);
}
}
#-webkit-keyframes spin{
to{
transform: rotateY(90deg);
}
}
<div id="d"><img src="http://img4.wikia.nocookie.net/__cb20120208185721/logopedia/images/5/54/Barclays_Premier_League_logo_(shield).gif" width="100px" height="100px"></div>

Answer 2

You need animation as well, not just transition:
http://jsfiddle.net/rudiedirkx/AB277/95/
The magic:
.card {
animation: spinn 5s linear infinite;
/* you don't need transition at all */
}
#keyframes spinn {
0% { transform: rotateY(0deg); }
100% { transform: rotateY(720deg); }
}
For some reason, Chrome still needs prefixes.
More info on css-tricks.

Answer 3

this animates the object as soon as the css and the html load:
(http://jsfiddle.net/oemtt7cr/)
#-webkit-keyframes spin {
from {
-webkit-transform: rotateY(0deg);
}
to {
-webkit-transform: rotateY(720deg);
}
}
#keyframes spin {
from {
transform: rotateY(0deg);
}
to {
transform: rotateY(720deg);
}
}
.container {
-webkit-perspective: 2000px;
}
.card {
margin: 20px;
background: #990;
width: 200px;
height: 200px;
animation: spin 5s ease;
-webkit-animation: spin 5s ease;
}
<div class="container">
<div class="card">flipy</div>
</div>

Answer 4

Use .card:hover instead of .card:after if you like the animation start when user move in with cursor.
http://jsfiddle.net/AB277/90/
.card {margin 20px;
background: blue;
width: 200px;
height:200px;
transition: all 5s;
}
.card:hover {
transform: rotateY(720deg);
}
Or if you like the animation at page load, use the following script.
http://jsfiddle.net/AB277/93/
<div id="card"
</div>
var elm = document.getElementById('card');
elm.classList.add('cardMove');
#card {margin 20px;
background: blue;
width: 200px;
height:200px;
transition: all 5s;
}
.cardMove {
transform: rotateY(720deg);
}