.background-image-one {
    background-image: url(ra1.jpg) !important;
    background-size: cover;
    background-attachment: fixed;
}

.background-image-two {
    background-image: url(ra3_ori.jpg) !important;
    background-size: cover;
    background-attachment: fixed;
}

.background-image-two-alt {
    background-image: url(ra3_alt.jpg) !important;
    background-size: cover;
    background-attachment: fixed;
}

.background.background-image-one.darken {
    background-image: linear-gradient(rgba(0, 0, 0, .6), rgba(0, 0, 0, .1)), url(ra1.jpg) !important;
    background-size: cover;
    background-attachment: fixed;
}

.background.background-image-two.darken {
    background-image: linear-gradient(rgba(0, 0, 0, .6), rgba(0, 0, 0, .1)), url(ra3.jpg) !important;
    background-size: cover;
    background-attachment: fixed;
}