.story{
display:block;
width: 262px;
height: 108px;

background: url("../images/sharedouble.jpg") 0 0 no-repeat;
text-decoration: none;
}
.story:hover { 
background-position: 0 -108px;

}
.pet1{
display:block;
width: 262px;
height: 114px;

background: url("../images/pet1double.jpg") 0 0 no-repeat;
text-decoration: none;
}
.pet1:hover { 
background-position: 0 -114px;

}
.pet2{
display:block;
width: 262px;
height: 129px;

background: url("../images/pet2double.jpg") 0 0 no-repeat;
text-decoration: none;
}
.pet2:hover { 
background-position: 0 -129px;

}
.pet3{
display:block;
width: 262px;
height: 129px;

background: url("../images/pet3double.jpg") 0 0 no-repeat;
text-decoration: none;
}
.pet3:hover { 
background-position: 0 -129px;

}