third_party/WebKit/LayoutTests/fast/dom/inert/resources/dialog-layout.css

/* Remove body margin and dialog styles for easier positioning expected values */
body {
    height: 10000px;
    margin: 0;
}

dialog {
    border: 0;
    padding: 0;
    height: auto;
    width: auto;
}

#absolute-div {
    position: absolute;
    top: 800px;
    height: 50px;
    width: 90%;
}

#relative-div {
    position: relative;
    top: 20px;
    height: 30px;
}