Bild in Galerie verdeckt - hilfe mit dem code

<style type="text/css">

         <!--


/* CSS Image Viewer from CSSplay (www.cssplay.co.uk) */

#gallery
{ position: relative;
top:0px;
margin-left: -30px;
  width: 500px;
  padding-top: 8px;
}

#thumbs
{ width: 150px;
  float: left;
}

#thumbs a
{ display: block;
  float: right;
  margin: 1px 0px 3px 10px;
  width: 25px;
  height: 25px;
  border: 2px solid #40403E;
}

#thumbs a img
{ width: 25px;
  height: 25px;
  border: 0;
}

#thumbs a:hover {border-color: #ddd;}

#thumbs a:hover img
{ position: left;
  width: 300px;
  height: auto;
  right: 196px;
  top: 8px;
  padding: 2px;
  border: 2px solid #ffffff;
}

 
         //-->
      </style>