Test link(s): [test](https://w3c.github.io/i18n-tests/exploratory/vanilla?text=%3Cdiv%20dir%3D%22auto%22%3E%D8%B9%3Cspan%20style%3D%22color%3Ablue%22%3E%D8%B9%3C%2Fspan%3E%D8%B9%0A%3C%2Fdiv%3E%0A&lang=ar&fontSize=80&width=500&height=500&a=A%20span%20with%20a%20colour%20change%20for%20one%20letter%20in%20an%20Arabic%20cursive%20word%20doesn't%20break%20the%20joining%20behaviour.&i=Test%20passes%20if%20all%20letters%20are%20joined%20together.) Results: - **Gecko:** ✅ *Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Firefox/102.0* - **Blink:** ✅ *Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36* - **Webkit:** ❌ *Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.5 Safari/605.1.15* Related tests: - [Cursive text](https://www.w3.org/International/i18n-tests/results/int-cursive) - [i18n test suite: Cursive joining](https://w3c.github.io/i18n-tests/results/css-text-shaping)