.hb-wrap{
 background:#000;
 padding:20px;
 border-radius:12px;
 margin:20px 0;
 position:relative;
}

/* minimal black button */
.hb-btn{
 position:absolute;
 top:12px;
 right:12px;
 background:#000;
 color:#fff;
 border:1px solid #333;
 padding:8px 14px;
 border-radius:6px;
 cursor:pointer;
 font-weight:bold;
}

.hb-btn:hover{
 background:#111;
}

.hb-success{
 position:absolute;
 top:12px;
 left:12px;
 color:#00ff88;
 font-weight:bold;
}