According to the CSS standard (MDN Reference), when an element uses position: static, the properties top, left, right, and bottom should be ignored. However, in the current implementation of JSAR Runtime, these properties are still effective and alter layout for elements with position: static.
Expected behavior:
- For elements with
position: static, the properties top, left, right, and bottom must have no effect (should be ignored by the layout engine).
Actual behavior:
- In JSAR Runtime, applying
top, left, right, or bottom to a statically positioned element affects its rendered position, which is a deviation from the web standard.
References:
Steps to reproduce:
- Create a simple HTML file with an element styled as
position: static and non-zero top/left values.
- Observe that the element is offset in JSAR but not in standard browsers.
Impact:
- This results in layout incompatibility with web standards and other browsers (Chromium, Gecko, etc.).
Suggestion:
- Update the layout engine so that when an element's
position is static, the top, left, right, and bottom properties are ignored during layout calculation.
Web标准参考：
According to the CSS standard (MDN Reference), when an element uses
position: static, the propertiestop,left,right, andbottomshould be ignored. However, in the current implementation of JSAR Runtime, these properties are still effective and alter layout for elements withposition: static.Expected behavior:
position: static, the propertiestop,left,right, andbottommust have no effect (should be ignored by the layout engine).Actual behavior:
top,left,right, orbottomto a statically positioned element affects its rendered position, which is a deviation from the web standard.References:
Steps to reproduce:
position: staticand non-zerotop/leftvalues.Impact:
Suggestion:
positionisstatic, thetop,left,right, andbottomproperties are ignored during layout calculation.Web标准参考：