| <!DOCTYPE html> |
| <title>CSS Test: Properties allowed on ::first-line pseudo elements</title> |
| <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#first-line-styling"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| #target::first-line {} |
| #target { visibility: hidden; } |
| </style> |
| <div id="target">text</div> |
| <script> |
| let style; |
| const target = document.querySelector("#target"); |
| const defaultComputedStyle = getComputedStyle(target); |
| |
| test(() => { |
| var styleRule = document.styleSheets[0].cssRules[0]; |
| assert_equals(styleRule.selectorText, "#target::first-line", "make sure we have the correct style rule"); |
| style = styleRule.style; |
| }, "retrieve style rule"); |
| |
| const validProperties = { |
| backgroundAttachment: "fixed", |
| backgroundBlendMode: "hue", |
| backgroundClip: "padding-box", |
| backgroundColor: "rgb(10, 20, 30)", |
| backgroundImage: "linear-gradient(rgb(0, 0, 0), rgb(255, 255, 255))", |
| backgroundOrigin: "border-box", |
| backgroundPosition: "50% 50%", |
| backgroundRepeat: "no-repeat", |
| backgroundSize: "10px 20px", |
| color: "rgba(10, 20, 30, 0.4)", |
| fontFamily: "sans-serif", |
| fontFeatureSettings: '"vert" 2', |
| fontKerning: "none", |
| fontSize: "30px", |
| fontSizeAdjust: "0.5", |
| fontStyle: "italic", |
| fontVariant: "small-caps", |
| fontWeight: "900", |
| fontVariationSettings: '"XHGT" 0.7', |
| letterSpacing: "12px", |
| opacity: "0.5", |
| textDecoration: "overline wavy rgb(10, 20, 30)", |
| textJustify: "none", |
| textShadow: "rgb(10, 20, 30) 10px 20px 30px", |
| textTransform: "capitalize", |
| textUnderlinePosition: "under", |
| verticalAlign: "12%", |
| wordSpacing: "12px" |
| }; |
| |
| const invalidProperties = { |
| border: "40px dotted rgb(10, 20, 30)", |
| borderImage: "linear-gradient(rgb(0, 0, 0), rgb(255, 255, 255)) 10% / 20 / 30px repeat", |
| borderRadius: "10px 20px", |
| margin: "10px 20px 30px 40px", |
| padding: "10px 20px 30px 40px", |
| position: "absolute", |
| transition: "transform 1s", |
| transform: "rotate(45deg)", |
| wordBreak: "break-all" |
| }; |
| |
| function testFirstLineProperty(property, rule, expected, reason) { |
| test(function() { |
| style[property] = ""; |
| style[property] = rule; |
| assert_equals(getComputedStyle(target, "::first-line")[property], expected); |
| style[property] = ""; |
| }, reason); |
| } |
| |
| for (let property in validProperties) { |
| testFirstLineProperty(property, validProperties[property], validProperties[property], |
| property + " should be applied to first-line pseudo elements."); |
| } |
| |
| for (let property in invalidProperties) { |
| testFirstLineProperty(property, invalidProperties[property], defaultComputedStyle[property], |
| property + " should not be applied to first-line pseudo elements."); |
| } |
| </script> |