#galerie li
{
list-style-type: none;
float: left;
margin: 0 10px 10px 0;
text-align: center;
font-weight: bold;
position: relative;
}

#galerie img
{
height: 150px;
display: block;
padding: 0px;
border: 2px solid #ffffff;
}

#galerie a .gross
{
display: none;
}

#galerie a:hover .gross
{
height: 250px;
display: block;
position: absolute;
top: -50px;
left: -50px;
z-index: 1;
background: #fff;
}