.b_btn-top{
    position:absolute;
    bottom:1em;
    right:0;
}
.b_btn-top a{
    float:left;
    position:relative;
    margin-left:5px;
    padding:4px 11px 4px 20px;
    font-weight:bold;
    color:#000;
    border:1px solid #ddd;
    border-radius:3px;
    -webkit-border-radius:3px;
    -moz-border-radius:3px;
    background:#f6f6f6;
    bottom: 2px;
}
.b_btn-top select{
    position:relative;
    margin-left:5px;
    bottom: 2px;
    height: 22px;
    bottom: 3px;
    
}
.b_btn-top a:hover{
    border-color:#000;
}