I think you could use the following HTML and CSS combo instead:
<li>
<a href="#">Backback</a>
</li>
Then use CSS background for the basket visibility on hover:
.listblock ul li a {
padding: 5px 30px 5px 10px;
display: block;
}
.listblock ul li a:hover {
background: transparent url('../img/basket.png') no-repeat 3px 170px;
}
Simples!