#btn-live
{
    animation: 1.8s pulse infinite ease-in-out;
}

@keyframes pulse 
{
    0% 
    {
      box-shadow: 0 0 0 0 #2358A8;
    }
  
    100% 
    {
        box-shadow: 0 0 0 10px #69ffa800;
    }
}