It looks okay to me, but then I'm a technician, not a designer.
You could try using the SPAN element:
Code:
<span style="font-weight:bold;font-size:20px">Actual description...</span>
Any of the Hx elements (i.e. <h3>) will break the line when you close it. The above attributes (bold, 20px) simulate an H3 without breaking the line at the end.
Here's a little code you can use to experiment and find alternative specs for the other Hx elements:
Code:
<span style="font-weight:bold;font-size:20px">EEEEEEE</span>
<h3>EEEEEEE</h3>
Just save it as a text file and load it into your browser to view the similarities/differences between the look of the Hx element and the style instructions. There are differences, however you may find them to be negligible.