| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>CSS Backgrounds and Borders: getComputedStyle().borderWidth</title> |
| <link rel="help" href="https://drafts.csswg.org/css-backgrounds/#border-width"> |
| <meta name="assert" content="border-width computed value is the absolute length; zero if the border style is none or hidden."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/computed-testcommon.js"></script> |
| <style> |
| #box { |
| border-style: dotted; /* Avoid border-*-width computed style 0 */ |
| border-top-width: thin; |
| border-right-width: medium; |
| border-bottom-width: thick; |
| } |
| #target { |
| border-style: dotted; /* Avoid border-*-width computed style 0 */ |
| font-size: 40px; |
| } |
| </style> |
| </head> |
| <body> |
| <div id="box"></div> |
| <div id="target"></div> |
| <script> |
| 'use strict'; |
| const box = document.getElementById('box'); |
| const thinWidth = getComputedStyle(box).borderTopWidth; |
| const mediumWidth = getComputedStyle(box).borderRightWidth; |
| const thickWidth = getComputedStyle(box).borderBottomWidth; |
| |
| test_computed_value("border-width", "1px"); |
| test_computed_value("border-width", "1px 2px"); |
| test_computed_value("border-width", "1px 2px 3px"); |
| test_computed_value("border-width", "1px 2px 3px 4px"); |
| |
| test_computed_value("border-width", "0.5em", "20px"); |
| test_computed_value("border-width", "2px thin medium thick", "2px " + thinWidth + " " + mediumWidth + " " + thickWidth); |
| |
| test_computed_value("border-top-width", "0px"); |
| test_computed_value("border-right-width", "10px"); |
| test_computed_value("border-bottom-width", "calc(-0.5em + 10px)", "0px"); |
| test_computed_value("border-left-width", "calc(0.5em + 10px)", "30px"); |
| |
| test(() => { |
| const thin = Number(thinWidth.replace("px", "")); |
| const medium = Number(mediumWidth.replace("px", "")); |
| const thick = Number(thickWidth.replace("px", "")); |
| assert_less_than_equal(0, thin); |
| assert_less_than_equal(thin, medium); |
| assert_less_than_equal(medium, thick); |
| }, "thin ≤ medium ≤ thick"); |
| </script> |
| </body> |
| </html> |
