Nesting Tags Correctly

Incorrect Nesting

This text is <em>italic, and this is <strong>bold and italic</em></strong>

Displays correctly in most browsers, but is invalid HTML:

This text is italic, and this is bold and italic

Correct Nesting

This text is <em>italic, and this is <strong>bold and italic</strong></em>

Displays the same, but is valid HTML:

This text is italic, and this is bold and italic