Is "U" tag still necessary?

[Profo]

I'm playing with 3.1 RC1. In prosilver/theme/common.css, around line 150:

Code: Select all

u {

	text-decoration: underline;

}

The <u> tag is deprecated for HTML5 and no longer used.
Taking a fast look at templates, I didn't find it. Most underlined texts are styled in css (e.g. border-bottom), which is the correct approach for HTML5.
"U" BBCode now returns <span style="text-decoration: underline">underlined text</span>.
So is this tag still necessary anywhere on the forums?

[RMcGirr83]

That isn't an HTML tag, it is a css one. They are completely different.

[Profo]

I'm sorry, but I don't understand your answer. I know the difference between HTML and CSS, and I know what tags are; they are not classes, identifiers or attributes. As far as I know, HTML tags are exactly the same as CSS tags.

I'll try to elaborate my question:
I just found it strange to see "u" tag in CSS. I searched trough templates and didn't find a reason for this tag to be there. I didn't find any other html5-deprecated tags in CSS either (like "acronym", "center" or "strike").
And this "u" tag is definitely not needed to display user input in topics (BBCodes).
There's probably a reason for the "u" tag to be there in common.css, and that's what I'm asking. Why or where do we need it?

[david63]

Why or where do we need it?

Cannot profess to be an expert in this area but could this be required for backward compatibility?

[Profo]

Yes, you are probably right david63. I didn't think about that, and it makes perfect sense. There are a lot of forums upgraded from older versions of phpbb.

[MattF]

<u> tags are not used in Prosilver or subsilver2, so no need for the CSS rule.