Strange CSS Display Issue

I have the following CSS code…

h2, h2 a, notoc, notoc a {
	color: #990000;
	font-size: 14px;
	font-weight: bold;
	margin: 20px 0 5px 0;
	padding: 0;
}

As you can see, there is a H2 tag and a NOTOC tag. They should both be identical. However, they are displaying differently…

• https://www.myimagegallery.co.uk/h2.png
• https://www.myimagegallery.co.uk/notoc.png

Can anyone help please.?

Thanks