I've been doing a bit of work with rendering 縦書き【たてがき】 in HTML, and was having a running internal monologue in Japanese about how things were progressing when I hit on a missing word: "line" as in "line of code". Trying to think of possibilities I came up with 列【れつ】 or 線【せん】, but neither feels right. Perhaps just the import ライン instead? Can anyone shed some light on this?
For context, the sentence in question is