.services-image {
  background-image: url("images/green.jpg"); /* The image used */
  background-color: #cccccc; /* Used if the image is unavailable */
 /* height: 500px; /* You must set a specified height */
  background-position: center; /* Center the image */
  background-repeat: repeat-y; /* Repeat the image vertically */
  background-size: cover; /* Resize the background image to cover the entire container */
}