div.hero {
    background: linear-gradient(to bottom right,rgba(28,71,134,0.9) 50px,rgba(0,68,107,0.7)),url("/2015-images/interior-bg2.jpg") no-repeat center top;
    background-size: cover;
    padding: 50px 0;
    color: #fff;
    /*
    z-index: -1;
	*/
    /* so it's blow div.hero__image when that element is added */
}