ul{
  list-style: none;
  margin: 0;
  padding: 0;
}

ul li{
  float: left;
/*   padding: 10px; */
  display: block;
/*   margin-right: 10px; */
}

ul li a{
  display: block;
  overflow: hidden;
  height: 25px;
  width: 28px;
  font-size: 8pt;
  text-decoration: none;
  background-color: #fff;
}

#a1{
  width: 135px;
}

ul li img{
/*   position: absolute; */
  border: 1px solid #000;
  float: left;
}