HTML/CSS - Make Children stay inside Parent? - html

Question

The header of this site expands on hover, revealing a hidden span.
But the images, that are suppose to reveal smoothly, kinda lag outside the header.
It's hard to explain, just take a look: http://jsfiddle.net/56t9r/
.header {
background:#FFF;
border-bottom:1px solid gray;
box-shadow:0 0 10px;
height:70px;
position:fixed;
top:0px;
width:100%;
z-index:2;
transition: height 1s ease;
}
.header:hover {
height: 120px;
transition: height 1s ease;
}
.kielet {
top:0px;
width:100%;
background: rgb(255, 255, 255);
/* Old browsers */
background: -moz-linear-gradient(top, rgba(255, 255, 255, 1) 0%, rgba(229, 229, 229, 1) 100%);
/* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(255, 255, 255, 1)), color-stop(100%, rgba(229, 229, 229, 1)));
/* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, rgba(255, 255, 255, 1) 0%, rgba(229, 229, 229, 1) 100%);
/* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, rgba(255, 255, 255, 1) 0%, rgba(229, 229, 229, 1) 100%);
/* Opera 11.10+ */
background: -ms-linear-gradient(top, rgba(255, 255, 255, 1) 0%, rgba(229, 229, 229, 1) 100%);
/* IE10+ */
background: linear-gradient(to bottom, rgba(255, 255, 255, 1) 0%, rgba(229, 229, 229, 1) 100%);
/* W3C */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#e5e5e5', GradientType=0);
/* IE6-9 */
padding:0px;
height: 0px;
box-shadow: 0 4px 2px -2px gray;
color: red;
transition: height 1s ease;
}
.kielet nav {
text-align: center;
height: 0px;
position: static;
transition: height 1s ease;
}
.header:hover > .kielet nav {
height:50px;
position: static;
}
.kielet a {
display: inline;
left: 0px;
}

Answer 1

Fiddle
.header {
overflow: hidden;
...
}
.header :hover **
.header .kielet nav {
height: 50px;
position: static;
}