<b> tag (inline): This text should be bold
<big> tag (inline): This text must be big
<hr> tag (block): There must be a line below this
<i> tag (inline): This text must be italic
<small> tag (inline): This text must be small
<sub> tag (inline): subscript
<sup> tag (inline): superscript
<tt> tag (inline): This text must be monotype