@-webkit-keyframes pulse {
    0% {
      box-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
    }
    70% {
      box-shadow: 0 0 0 50px rgba(222, 114, 45, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(222, 114, 45, 0);
    }
  }
  
  @-webkit-keyframes pulse-mobile {
    0% {
      box-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
    }
    70% {
      box-shadow: 0 0 0 25px rgba(222, 114, 45, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(222, 114, 45, 0);
    }
  }
  
  .video-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
  .pulse-button {
    text-decoration: none;
    font: 500 14px/17px Arial, sans-serif;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    background:  rgba(255, 255, 255, 0.7);
    text-align: center;
    position: absolute;
    width: 75px;
    height: 75px;
    border-radius: 50%;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 9;
    animation: pulse-mobile 1.5s infinite;
    transition: background-color 0.3s, color 0.3s, box-shadow 0.3s;
  }
  
  .pulse-button:hover {
    background-color: rgba(255, 255, 255, 0.7);
    color: #fff;
    animation: none;
  }
  
  @media screen and (max-width: 768px) {
    .pulse-button {
      width: 60px;
      height: 60px;
      right: 40px;
      bottom: 105px;
      animation: pulse 1.5s infinite;
    }
  }