I've been working on my special hover effect for my button, but the problem is, it's not working on Firefox, but it works on chrome smoothly.
#hotsheet_wrapper .hs_sellers{
    background:url('images/hs_sl_bg.png') center top no-repeat;
}
#hotsheet_wrapper .hs_buyers{
    background:url('images/hs_sl_bg.png') center top no-repeat;
}
#hotsheet_wrapper .hs_senior{
    background:url('images/hs_sl_bg.png') center top no-repeat;
}
#hotsheet_wrapper .hs_divorce{
    background:url('images/hs_dl_bg.png') center top no-repeat;
}
#hotsheet_wrapper .hs_construction{
    background:url('images/hs_dl_bg.png') center top no-repeat;
}
#hotsheet_wrapper .hs_sellers:hover{
    background:url('images/hs_sellers.png') center top no-repeat;
    transition: 1s all ease;
    -moz-transition: 1s all ease;
    -webkit-transition: 1s all ease;
    -o-transition: 1s all ease;
    -ms-transition: 1s all ease;
}
#hotsheet_wrapper .hs_buyers:hover{
    background:url('images/hs_buyers.png') center top no-repeat;
    transition: 1s all ease;
    -moz-transition: 1s all ease;
    -webkit-transition: 1s all ease;
    -o-transition: 1s all ease;
    -ms-transition: 1s all ease;
}
#hotsheet_wrapper .hs_senior:hover{
    background:url('images/hs_senior.png') center top no-repeat;
    transition: 1s all ease;
    -moz-transition: 1s all ease;
    -webkit-transition: 1s all ease;
    -o-transition: 1s all ease;
    -ms-transition: 1s all ease;
}
#hotsheet_wrapper .hs_divorce:hover{
    background:url('images/hs_divorce.png') center top no-repeat;
    transition: 1s all ease;
    -moz-transition: 1s all ease;
    -webkit-transition: 1s all ease;
    -o-transition: 1s all ease;
    -ms-transition: 1s all ease;
}
#hotsheet_wrapper .hs_construction:hover{
    background:url('images/hs_construction.png') center top no-repeat;
    transition: 1s all ease;
    -moz-transition: 1s all ease;
    -webkit-transition: 1s all ease;
    -o-transition: 1s all ease;
    -ms-transition: 1s all ease;
}
 
     
    