.page-header {
    background-image: url('../images/index-header.jpg');
    position: relative;
    overflow: hidden;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50%;
    box-shadow: inset 0 0 0 1000px rgba(0,0,0,.4);
}

.kris-pic {
    background-image: url('../images/kris_stairs.png');
    background-size: cover; 
    background-repeat: no-repeat;
    height: 75vh;
}