change color for entry-content h2 in Twentytwelve child theme

Hi,

I currently have a child theme of Twentytwelve, which is working Ok, and where I’ve managed to change the font colour of the .entry-content h3 to red (#BF0202).

I’d like to change all .entry-content headers to the same colour, but nothing seems to work! I’ve read heaps of Q&A here, and tried a variety of options, but with no luck.

My original css for just the .entry-content h3 was this:

.entry-header .entry-title, .entry-content h3 {
	color: #bf0202!important;
	}

which worked fine for the h3

So I changed it to this:

.entry-header .entry-title, .entry-content h3, .entry-content h1, .entry-content h2, .entry-content h4, .entry-content h5, .entry-content h6 {
	color: #bf0202!important;
	}

which was still fine for the h3, but had no impact on h1,2,4,5 and 6 – just can’t figure out why…

My current css is this:

.entry-header .entry-title {
	color: #bf0202 !important;
	}
h1.entry-content,
h1.comment-content,
h2.entry-content,
h2.comment-content,
h3.entry-content,
h3.comment-content,
h4.entry-content,
h4.comment-content,
h5.entry-content,
h5.comment-content,
h6.entry-content,
h6.comment-content {
	color: #bf0202 !important;
	}

You can see it in the recent blog: https://trevorpenfold.com/best-2013-photography-2014/ where the blog title is fine, and the 1st subtitle is OK, as it’s an h3, but the next blog sub-title is an h4 and doesn’t show the red colour, and even more weirdly it shows in Firebug as being body/paragraph text (yet was definitely marked as Heading 4).

Any ideas?? Thanks.