Both Safari and Safari Technology Preview works as well as Chrome and Firefox. This H1 does not have any tags inside.
Does not work with Safari and Safari Technology Preview with tag inside. Highlight (CMD + A) this page and then remove the highlight and it's right there. This H1 does have SPAN tag inside and is set to "display: block". Works normal on Chrome and Firefox.
Does not work with Safari and Safari Technology Preview with tag inside. Highlight (CMD + A) this page and then remove the highlight but does not work. The "World" is nowhere to be seen. This H1 does have SPAN tag inside and is set to "display: inline-block". Does not work on Chrome and Firefox.