<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>CSS Positioned Layout Module Level 3: getComputedStyle().top</title> <link rel="help" href="https://drafts.csswg.org/css-position/#propdef-top"> <meta name="assert" content="top lengths are made absolute."> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/css/support/computed-testcommon.js"></script> </head> <body> <div id="target"></div> <style> #target { font-size: 40px; } </style> <script> test_computed_value("top", "auto"); test_computed_value("top", "calc(10px + 0.5em)", "30px"); test_computed_value("top", "calc(10px - 0.5em)", "-10px"); test_computed_value("top", "-40%"); test_computed_value("top", "calc(50% + 60px)"); </script> </body> </html>