what is difference between <b> and <strong > tag?

Answer 1

"Bold" is a style - when you say "bold a word", people basically know that it means to add more, let's say "ink" around the letters until they stand out more amongst the rest of the letters.

That, unfortunately, means nothing to a blind person. And on mobile phones and other PDAs, text is already bold because screen resolution is very small. You can't bold a bold without screwing something up.

<b> is a style - we know what "bold" is supposed to look like.

<strong> however is an indication of how something should be understood. "Strong" could (and often does) mean "bold" in a browser, but it could also mean a lower tone for a speaking program like Jaws (for blind people). And strong on a Palm Pilot may be an underline (since you can't bold a bold).

HTML was never meant to be about styles. Do some searches for "Tim Berners-Lee" and "the semantic web". <strong> is semantic - it describes the text it surrounds ("this text should be stronger than the rest of the text you've displayed") as opposed to describing how the text it surrounds should be displayed ("this text should be bold").

from: http://stackoverflow.com/questions/271743/whats-the-difference-between-b-and-strong-i-and-em

Answer 2

B is to make the text bold whereas Strong is used when you want to emphasize a given text .. Same in the case of 'i' and 'em'..

Answer 3

There is no difference, but you should use css instead:
font-weight: bold;

Answer 4

text color of "strong" is little more darker than "bold".

Answer 5

bold для визуального выделения, а strong для смыслового.