This blockquote element has direction ltr (initial value, no explicit CSS rule defined)

This paragraph has direction ltr. This emphasized text has direction of ltr also, since em is descendant of p (property is inherited).

This strong text has direction rtl (if applicable)

This h3 heading has direction inherit (if applicable)

This h4 text has direction ltr

This h5 heading is UA-default (percentages don't apply)
The rules applied are "p {direction: ltr}", "strong {direction: rtl}", h3 {direction: inherit}", h4 {direction: ltr}", h5 {direction: 200%}". NOTE: From all elements listed above, direction property should apply to all elements.