*, *:before, *:after {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

img, video {
  max-width: 100%;
  height: auto;
}

/*
==============================================
pulse
==============================================
*/
.pulse {
  animation-name: pulse;
  -webkit-animation-name: pulse;
  animation-duration: 1.5s;
  -webkit-animation-duration: 1.5s;
  animation-iteration-count: infinite;
  -webkit-animation-iteration-count: infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.9);
    opacity: 0.7;
  }
  50% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(0.9);
    opacity: 0.7;
  }
}
@-webkit-keyframes pulse {
  0% {
    -webkit-transform: scale(0.95);
    opacity: 0.7;
  }
  50% {
    -webkit-transform: scale(1);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(0.95);
    opacity: 0.7;
  }
}