.blueBg {
  /*background-image: linear-gradient(90deg, #00BFFF, #1E90FF);*/
  background-color: #fff;
}

.intro-banner-vdo-play-btn {
  height: 100px;
  width: 100px;
  position: absolute;
  top: 40%;
  left: 30%;
  text-align: center;
  margin: -30px 0 0 -30px;
  border-radius: 100%;
  z-index: -7;
}

.intro-banner-vdo-play-btn i {
  line-height: 56px;
  font-size: 30px;
}

.intro-banner-vdo-play-btn .ripple {
  position: absolute;
  width: 680px;
  height: 680px;
  z-index: -1;
  left: 50%;
  top: 50%;
  opacity: 0;
  margin: -380px 0 0 -360px;
  border-radius: 100%;
  -webkit-animation: ripple 1.8s infinite;
  animation: ripple 1.9s infinite;
}

@keyframes ripple {
  0% {
    opacity: 1;
    -webkit-transform: scale(0);
    transform: scale(0);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

.intro-banner-vdo-play-btn .ripple:nth-child(2) {
  animation-delay: .3s;
  -webkit-animation-delay: .3s;
}

.intro-banner-vdo-play-btn .ripple:nth-child(3) {
  animation-delay: .6s;
  -webkit-animation-delay: .6s;
}

.intro-banner-vdo-play-btn .ripple:nth-child(4) {
  animation-delay: .6s;
  -webkit-animation-delay: .6s;
}