Here is an example of a CSS3 transition with ease effect:
HTML
<div class="button">
<a href="#" onMouseOver="clicksound.playclip()"></a>
<p id="myId" class="top"></p>
</div>
CSS
* {
padding: 0;
margin: 0;
}
.button {
width: 180px;
margin-top: 45px;
}
.button a {
display: block;
height: 40px;
width: 180px;
/*TYPE*/
color: black;
font: 17px/50px Helvetica, Verdana, sans-serif;
text-decoration: none;
text-align: center;
text-transform: uppercase;
}
.button a {
background:url(http://imageshack.com/a/img819/761/dqj.gif);
margin: -50 0 0 0;
z-index: -1;
}
p#myId {
background: url(http://imageshack.com/a/img854/1921/9ft3.png);
display: block;
height: 40px;
width: 167px;
margin: -40px 0 0 5px;
z-index:-1;
/*TYPE*/
text-align: center;
font: 12px/45px Helvetica, Verdana, sans-serif;
color: #fff;
/*POSITION*/
position: absolute;
/*TRANSITION*/
-webkit-transition: margin 0.1s ease;
-moz-transition: margin 0.1s ease;
-o-transition: margin 0.1s ease;
-ms-transition: margin 0.1s ease;
transition: margin 0.1s ease;
}
.button:hover .top {
margin: -67px 0 0 5px;
line-height: 35px;
}
/*ACTIVE*/
.button:active .top {
margin: -70px 0 0 5px;
}
Changing the p#myId selector to p in CSS causes the button to go up on hover.