.hero-bg {
  background-image: url("../Images/Hero_Leaf_1.png"),url("../Images/Hero_Leaf_2.png");
  background-size: 190px, 190px;
  background-position: bottom left -20px, bottom right -20px;
  background-repeat: no-repeat;
}

@media (min-width: 640px) {
  .hero-bg {
    background-size: 400px, 400px;
    background-position: bottom left -35px, bottom right -35px;
  }
}