@keyframes breathe{
  0%,100%{transform:scale(1);}
  50%{transform:scale(1.04);}
}
.hs{position:absolute;width:2.5%;padding-top:2.5%;margin-left:-1.25%;margin-top:-1.25%;cursor:pointer;text-decoration:none;border-radius:50%;z-index:9;}
.hs:hover{background:rgba(255,255,255,0.25);box-shadow:0 0 0 3px rgba(255,255,255,0.5);}
.tip{display:none;position:absolute;bottom:120%;left:50%;transform:translateX(-50%);background:#fff;color:#111;font-family:Arial,sans-serif;font-size:14px;font-weight:700;white-space:nowrap;padding:6px 14px;border-radius:4px;border:1px solid #ddd;box-shadow:0 2px 8px rgba(0,0,0,0.2);z-index:99;pointer-events:none;}
.hs:hover .tip{display:block;}