What's the difference between <b> and <strong>, <i> and <em>?
4 b or i means you want the text to be rendered as bold or italics. strong or em means you want the text to be rendered in a way that the user understands as "important". The default is to render strong as …
css - Why em instead of px? - Stack Overflow
Mar 4, 2009 · I heard you should define sizes and distances in your stylesheet with em instead of in pixels. So the question is why should I use em instead of px when defining styles in CSS? Is there a …
What is the difference between <strong> and <em> tags?
Dec 20, 2009 · The em element [...] isn't intended to convey importance; for that purpose, the strong element is more appropriate. [...] The strong element The strong element represents strong …
html - How is an em calculated? - Stack Overflow
Jul 31, 2011 · The 'em' is a very useful unit in CSS, since it can adapt automatically to the font that the reader uses An EM is relative to the current element it is defined on. If you use relative sizes (like …
What is the difference between <cite>, <em>, and <i> tags of HTML?
Jun 17, 2015 · cite & em is HTML 5 - standard, which insists in meaning. For a long time, old HTML (like <i>) is used for layout display. But the new standard requires that HTML should only consists of …
What is the em font-size unit? How much is it in pixels?
Dec 17, 2010 · The M-principle that an em is based on the letter M and is dependent on font is an often stated myth!! very succinctly describes exactly how ems and pixels relate. Using the letter M to …
What does CSS measurement unit 'em' actually stand for?
Apr 5, 2013 · The name of em is related to M. Originally the unit was derived from the width of the capital "M" in the given typeface. My interpretation of the first sentence would be that 'em' is the …
What is a font's "EM box/EM unit" and where is it defined
Dec 30, 2013 · For scalable fonts, the font-size is a scale factor applied to the EM unit of the font. (Note that certain glyphs may bleed outside their EM box.) For non-scalable fonts, the font-size is …
css - What is height in em? - Stack Overflow
Aug 9, 2010 · Explains the concept of height in em units within CSS, providing insights and examples for better understanding.
html5 - ¿Cuál es la diferencia entre las etiquetas HTML <strong> y <b ...
Jun 12, 2017 · strong y em, en cambio, marcan una diferencia en la fuerza o énfasis que se quiere dar a una palabra o frase sobre el texto completo. En un navegador tradicional la diferencia no se percibe, …