body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  background: #fff;
}
.section {
  text-align: center;
}
.cta-wrapper {
  position: relative;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin: 0 auto;
}
.cta-button {
  display: block;
  width: 100%;
  padding-top: 40%;
  background-size: cover;
  background-position: center;
  position: relative;
}
.cta-button img {
  width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulse 2s infinite ease-in-out;
}
@keyframes pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
  }
}
img.vertical-img {
  width: 100%;
  max-width: 600px;
  height: auto;
  display: block;
  margin: 0 auto;
}