<style>
nav li {
    display:
}
nav a {
    heigth:
    pointer:
}
    .NavItemToys {background: url(...png);}
    .NavItemToys:hover {background: url(...png);}
    .NavItemCloth {background: url(...png);}
    .NavItemCloth:hover {background: url(...png);}
</style>

<nav>
<ul>
    <li><a class='NavItemToys'>Игрушки</a></li>
    <li><a class='NavItemCloth'>Белье</a></li>
</ul>
</nav>