Underline

[Pedantic Idiot] “I looked, there’s nothing under there. If it’s so important it should be clear and understandable. Nothing is under the line.”
[Innocent] “The line is under the important text. Underlined!”
[Pedantic Idiot] “You mean you drew a line under the important text.”
[Innocent] “Same thing.”
[Pedantic Idiot] “Is it though?”
{Innocent gives derisive look}
[Pedantic Idiot] “Okay. Now, you said highlighted…”