web-platform-tests/wpt

Test CSSOM resolved values for different `position` values

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#5,897 创建于 2017年5月11日

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css-positioncssomgood first issuetype:missing-coverage

描述

https://drafts.csswg.org/cssom/#resolved-values

See https://github.com/w3c/csswg-drafts/issues/1346 for the spec issue around position: sticky, though note per the original discussion on the Chromium bug tracker position: fixed makes no more sense as currently spec'd.

http://output.jsbin.com/wunoxod/quiet is a simple test page.

Results:

position: static relative sticky absolute fixed
Chrome 58 auto 0px 0px 224px 296px
Firefox 53 auto 0px auto 224px 296px
Edge 14 auto auto n/a auto auto
Safari 10 auto auto auto auto auto

贡献者指南

技术栈
htmlcss
领域
testing
议题类型
test
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
understanding of CSSOM specfamiliarity with wpt test harness
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
Review the CSSOM resolved values spec at https://drafts.csswg.org/cssom/#resolved values and the test page at http://output.jsbin.com/wunoxod/quiet. Look at existing tests in the wpt repository under css/cssom/ for patterns. The issue requires writing tests that verify the resolved values for position static, relative, sticky, absolute, and fixed across browsers, focusing on the discrepancies noted. No maintainer comments or linked PRs exist, so the solution should propose a new test file in the appropriate directory.