.t180-hotspot{position:absolute;border:3px solid #e53935;border-radius:50%;background:rgba(229,57,53,0.12);cursor:pointer;box-sizing:border-box;}
.t180-hotspot.playing{animation:t180-pulse .6s infinite;}
@keyframes t180-pulse{0%{box-shadow:0 0 6px rgba(229,57,53,0.6);}50%{box-shadow:0 0 14px rgba(229,57,53,0.9);}100%{box-shadow:0 0 6px rgba(229,57,53,0.6);}}
.t180-hotspot-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;}
.t180-hotspot-layer .t180-hotspot{pointer-events:auto;}