css3 animation on :hover; force entire animation

I've created a simple bounce animation which i'm applying to the :hover state of an element:

@keyframes bounce {
    0% {
      top: 0;
      animation-timing-function: ease-out;
    }
    17% {
      top: 15px;
      animation-timing-function: ease-in;
    }
    34% {
      top: 0;
      animation-timing-function: ease-out;
    }
    51% {
      top: 8px;
      animation-timing-function: ease-in;
    }
    68% {
      top: 0px;
      animation-timing-function: ease-out;
    }
    85% {
      top: 3px;
      animation-timing-function: ease-in;
    }
    100% {
      top: 0;
    }
}

.box:hover { 
    animation: bounce 1s;
}

The animation works fine, with the exception that when you remove your cursor from the element it abruptly stops. Is there anyway to force it to continue the set number of iterations even if the mouse has exited? Basically what I'm looking for here is an animation triggered by the :hover state. I'm not looking for a javascript solution. I haven't seen anyway to do this in the spec, but maybe there's an obvious solution I've missed here?

Here's a fiddle to play with: http://jsfiddle.net/dwick/vFtfF/

Solution 1:

I'm afraid that the only way to solve this is with a bit of javascript, you must add the animation as a class and then remove it when the animation finishes.

$(".box").bind("webkitAnimationEnd mozAnimationEnd animationend", function(){
  $(this).removeClass("animated")  
})

$(".box").hover(function(){
  $(this).addClass("animated");        
})

http://jsfiddle.net/u7vXT/

Solution 2:

I created a JsFiddle with this answer from the same post https://stackoverflow.com/a/7697786/8335898 using pure Javascript if anyone wants to use it.

const elements = document.getElementsByClassName('box');

for (let i = 0; i <= elements.length; i++) {
  elements[i].addEventListener('animationend', function(e) {
    elements[i].classList.remove('animated');
  });

 elements[i].addEventListener('mouseover', function(e) {
   elements[i].classList.add('animated')
 })
}