Difference between colspan and span

Answer 1

colspan attribute is used to set the number of columns a cell should span in a table.

Span element is a generic inline container for phrasing content, which does not inherently represent anything.

Answer 2

<span> is an inline tag

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/span

meanwhile colspan is an attribute only valid for <th> oŕ <td> table tags

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/table#complicated_tables

Answer 3

colspan is an attribute in tables that is used to make 2 or more columns into single column

span is an inline tag that is usef to highlight small portion of the text of image

Both of them purpose is different