314084 2026-05-05 06:50:24 -0700 Bad metrics calculated for annotation/annotation-xml elements with padding 2026-05-05 07:02:02 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 195797 314085 1 fred.wang webkit-unassigned eri oldest_to_newest 2207648 0 479476 fred.wang 2026-05-05 06:50:24 -0700 Created attachment 479476 testcase Testcase: <!DOCTYPE html> <meta charset="utf-8"/> <style> annotation-xml, annotation, mrow { font-family: math; display: initial; padding: 50px; border: 1px solid red; background: lightblue; opacity: .8; } </style> <p>Hello Hello Hello Hello Hello Hello Hello Hello Hello Hello Hello Hello</p> <math> <semantics> <mtext></mtext><annotation>annotation</annotation> </semantics> </math> <math> <semantics> <mtext></mtext><annotation-xml encoding="text/html"><span>annotation-xml</span></annotation-xml> </semantics> </math> <p>World World World World World World World World World World World World</p> The annotation and annotation-xml boxes overlap with the "Hello World" text around. Note that the rendering is quite broken. If you remove `opacity: .8` nothing is shown. Also the annotation and annotation-xml text is not visible because of bug 314081. 479476 2026-05-05 06:50:24 -0700 2026-05-05 06:50:24 -0700 testcase styled-semantics-annotation.html text/html 647 fred.wang PCFET0NUWVBFIGh0bWw+CjxtZXRhIGNoYXJzZXQ9InV0Zi04Ii8+CjxzdHlsZT4KICBhbm5vdGF0 aW9uLXhtbCwgYW5ub3RhdGlvbiwgbXJvdyB7CiAgICAgIGZvbnQtZmFtaWx5OiBtYXRoOwogICAg ICBkaXNwbGF5OiBpbml0aWFsOwogICAgICBwYWRkaW5nOiA1MHB4OwogICAgICBib3JkZXI6IDFw eCBzb2xpZCByZWQ7CiAgICAgIGJhY2tncm91bmQ6IGxpZ2h0Ymx1ZTsKICAgICAgb3BhY2l0eTog Ljg7CiAgfQo8L3N0eWxlPgo8cD5IZWxsbyBIZWxsbyBIZWxsbyBIZWxsbyBIZWxsbyBIZWxsbyBI ZWxsbyBIZWxsbyBIZWxsbyBIZWxsbyBIZWxsbyBIZWxsbzwvcD4KPG1hdGg+CiAgPHNlbWFudGlj cz4KICAgIDxtdGV4dD48L210ZXh0Pjxhbm5vdGF0aW9uPmFubm90YXRpb248L2Fubm90YXRpb24+ CiAgPC9zZW1hbnRpY3M+CjwvbWF0aD4KPG1hdGg+CiAgPHNlbWFudGljcz4KICAgIDxtdGV4dD48 L210ZXh0Pjxhbm5vdGF0aW9uLXhtbCBlbmNvZGluZz0idGV4dC9odG1sIj48c3Bhbj5hbm5vdGF0 aW9uLXhtbDwvc3Bhbj48L2Fubm90YXRpb24teG1sPgogIDwvc2VtYW50aWNzPgo8L21hdGg+Cjxw PldvcmxkIFdvcmxkIFdvcmxkIFdvcmxkIFdvcmxkIFdvcmxkIFdvcmxkIFdvcmxkIFdvcmxkIFdv cmxkIFdvcmxkIFdvcmxkPC9wPgo=