<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>CSS Test: line-height - padding-top of inline non-replaced element paint over previous line box</title> <!-- Inspired by http://archive.webstandards.org/css/winie/inline.html --> <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#leading" title="10.8.1 Leading and half-leading"> <link rel="bookmark" href="http://archive.webstandards.org/css/winie/inline.html"> <link rel="match" href="reference/border-padding-bleed-001-ref.htm"> <meta content="ahem" name="flags"> <meta content="Although margins, borders and padding of inline non-replaced elements do not enter into the line box calculation, they are still rendered around inline boxes. This means that if the height specified by 'line-height' (40px in this testcase) is equal to the content height (40px in this testcase) of contained boxes, then background-color of padding-top area and border-top may 'bleed' into the adjoining preceding line box. Since line boxes are rendered in document order, this causes padding-top of 2nd line box (the span element in this testcase) to be painted over border-bottom and padding-bottom of inline boxes of previous line and, in this testcase, over the 1st line box." name="assert"> <style type="text/css"> div { color: red; font: 40px/1 Ahem; } span { background-color: green; /* so that padding-top area is painted green */ color: green; padding-top: 1em; } </style> </head> <body> <p>Test passes if there is a filled green rectangle and <strong>no red</strong>.</p> <div>shuldboverlaPPed<br> <span>bleedover1stline</span></div> </body> </html>