CSS3 keyframes ease-in box then ease-out - css

Question

I am having a look at CSS3 keyframes and want to have a box that eases in then eases out for the specified iteration-count, this is what I have so far it eases in then disappears then eases in again.
I want the box to ease in then ease out. See my fiddle. What do I need to do to achieve this?
<div id="content">
<span class="aniamte"></span>
</div>
#keyframes reset {
0% { opacity: 0; }
100% { opacity: 0; }
}
#keyframes fade-in {
0% { opacity: 0; }
60% { opacity: 0; }
100% { opacity: 1; }
}
.aniamte {
background: red;
display: inline-block;
height: 100px;
width: 100px;
animation-name: reset, fade-in;
animation-duration: 3s;
animation-timing-function: ease-in-out;
animation-iteration-count: 5;
animation-delay: 0, 1s;
}

Answer 1

I believe you're looking for animation-direction:alternate, but your question is not very clear. This will make your element use the keyframes from 0% to 100% for the specified duration then go from 100% to 0% after the first iteration is complete
#keyframes fade-in {
0% { opacity: 0; }
100% { opacity: 1; }
}
.animate {
background: red;
display: inline-block;
height: 100px;
width: 100px;
animation-name: fade-in;
animation-duration: 3s;
animation-timing-function: ease-in-out;
animation-direction:alternate;
animation-iteration-count: 5;
}
Demo