#ip-image-strip,
.parallax{ 
    background-size: cover;
    /* The url is relative to the document, not to the css file! */
    /* Prefer absolute urls to avoid confusion. */
    -ms-behavior: url(https://www.livemhc.com/wp-content/themes/livemhc.com-luxor/polyfills/backgroundsize.min.htc);
}