.index { position: relative; left: 100px; }

.nadpis a{
  color:#3F7826;
  font-size:15px;
  font-weight:bold;
}

/* Books */
.books a{
  float:left;
  background-repeat:no-repeat;
  background-image:url("../obsah/img/store_books_color.jpg");
}
.books a:hover img{visibility:hidden;}

/* T-shirts */  
.tshirts a{
  float:left;
  background-repeat:no-repeat;
  background-image:url("../obsah/img/store_tshirts_color.jpg");
}
.tshirts a:hover img{visibility:hidden;}