By default, <h1> is a block-level element. You can change this by setting:... or by floating it. However, the example use you have given above is an abuse of the element. For a start, text must be contained within another element, usually <p>:
Code:
<p>Hello all of you, I am a <h1>solicitor</h1> but I am not really.</p>
<h1> and friends are invalid inside a paragraph (I suggest you see http://validator.w3.org/).
Why exactly do you want to do this? There's probably another element that would be more appropriate.
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