Why was removed underline tag <u>

Question

in html we can see <u> and <ins> are both work as same.
so which is best in both.

Answer 1

<u> and <ins> use for different purpose though they bring same result
<u> is mainly use to underline texts and
<ins> use to declare the Text that has been inserted after <del>(deleting) texts

Answer 2

thanku all of you

Answer 3

because you can personalize the appearance with CSS, which was mean for that

Answer 4

So to rephrase earlier posts in this thread, use <ins> if your use case lines up with the intended meaning behind <ins> (as per Shudarshan Rai👑 ) and use CSS "text-decoration: underline;" if you just want the formatting / styling /appearance (as per Xavier Heugue ).

"The <u> element was deprecated in HTML 4.01. (the <u> element was used to define underlined text).

The <u> element is redefined in HTML5, to represent text that should be stylistically different from normal text, such as misspelled words or proper nouns in Chinese."

https://www.w3schools.com/tags/tag_u.asp

I try to avoid using <u>, generally.