.graft_calc_button{
    border-radius:5px;background-color:#73818a;color:white!important;font-weight:bold;box-shadow:0 0 0 1px #73818a;padding:8px 12px;position:fixed;bottom:4%;left:calc(50% - 100px);opacity:1;z-index:9999!important;
}
.graft_calc_button:hover, .graft_calc_button:active{
    background-color: white!important;
    color: #73818a!important;
}