body, html {
    height: 100%;
}

/* The hero image */
.hero-image1 {
  /* Use "linear-gradient" to add a darken background effect to the image (photographer.jpg). This will make the text easier to read */
  background-image: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0)), url("https://markets.independentagent.com/bigimarkets/amap/images/bim-login-lock-overlay-blue-70.png");

  /* Set a specific height */
  height: 50%;

  /* Position and center the image to scale nicely on all screens */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
} 