/** * Container for the interesting part of a highlight reftest, to be * used on both the test page and any reference pages. */ .highlight_reftest { /* https://drafts.csswg.org/css-pseudo-4/#highlight-bounds For text, the corresponding overlay must cover at least the entire em box and may extend further above/below the em box to the line box edges. */ line-height: 1; } /** * Container for layers. All text is transparent by default, and each direct * child creates a layer that overlaps any text content. */ .hrt_layers, .hrt_layers * { color: transparent; } .hrt_layers { position: relative; } .hrt_layers > * { position: absolute; } /** * Cover to clip text from the right. Usage: * *