biblioteka { font-size: 14 pt; color: red; display: block; }
Ksiazka { font-size: 30pt; color: red; display: block; margin: 1em; 
  background-color: yellow; }
Tytul { font-size: 30pt; color: blue; display: inline; }
Autor { font-size: 20pt; font-weight: bold; color: red; 
   display: inline; }
Kategoria { font-size: 15pt; color: green; display: block;
   margin: 0 0 0 1em }
