FF89 hex to decimal conversion -

Can not remove blue outlines of input box in FF89 by using Screenshot below (found here

FF89 hex to decimal conversion From Binary, Decimal, Octal, Hexadecimal ₁₆ = + + + = ₁₀ FF88

ff89 FF89 hex to decimal conversion From Binary, Decimal, Octal, Hexadecimal ₁₆ = + + + = ₁₀ FF88

ff89 ﾉ, codepoint U+FF89 HALFWIDTH KATAKANA LETTER NO in Unicode, is located in the block “Halfwidth and Fullwidth Forms” It belongs to the Katakana script and