The difference between <b></b> and <span></span>

The answer is simple...

<b></b>incorporates the bold text property while <span></span>

doesn't☺

or...

The <b> and <span> tags are both HTML tags used to format text on a web page, but they have different purposes.

The <b> tag is used to make text bold, which means that it will be displayed in a thicker font weight than the surrounding text. This tag is used to highlight important information, such as keywords in a sentence, or to make text stand out.

The <span> tag, on the other hand, is a generic container for inline elements. It is used to group elements together and apply styles to them. It doesn't have any default rendering and it's used mostly in conjunction with CSS selectors. It's used to format text in a specific way, for example, change the color, font, size, or add a background color. It can be used to change the appearance of text, but it doesn't change the font weight.

In summary, <b> tag is used to make text bold, while the <span> tag is used to group elements together and apply styles to them.