.

#2: Something like this?

.directory .content, body.buddypress .content {
background-color: #333;
}

As for your breadcrumb, you insert it where you want the breadcrumb to appear. This is depends on your personal preferences.

I would need to know where you would like your breadcrumb to appear before I could let you know where to insert the code.

.custom-header {
min-height: 170px; /* change this number in accordance to the height of your banner */
}

Please try that code and let me know the result.

I really like the image container, i tried to remove the padding but that didnt help. Is there a way to make the container smaller?

Yes, but making .featuredBox small wouldn’t solve the issue. The sidebar is inside #page .home-page .content, together with .article; that means if you want to move it up without moving articles, you’d need to use negative margin-top (and maybe adding z-index, too, if necessary).

That’s not good because then it would screw up the sidebar position on the rest of the pages (instead of just the home page now).

Nothing can be done with CSS to achieve what you want. You’d have to edit the PHP portion of the theme.

1. Just on single posts, right? Not anywhere else?

#post-entry article.post-single h1.post-title {
font-size: 28px; /* single-post title font-size */
}

2. I’m not sure what you mean. Could you please elaborate on that a bit more? Here’s my guest on what you might have meant for the /group/:

ol.commentlist li {
background-color: #333; /* group comment background color */
}

It got pushed down because of the featured image above it. Sure, your image isn’t that big, but the image’s container (.featuredBox class) is. Get rid of the featured image and it should normal again.

Also, your site’s load time is far too slow. Most visitors would be frustrated if a simple page–without anything fancy–take more than 2 secs to load.

#site-title a {
display: none;
}

This is the simplest way to hide the site title. If by “site title” you mean something else, please let me know.

Most like you’ll need to setup static front page. It’s in Settings –> General –> Readings.

But like Andrew said, if you’re unfamiliar with shortcodes and wordpress settings, you’ll have to either contact the theme authors or hire a professional to set it up for you.

Try this code:

#main-navigation .sf-menu a {
color: #fff; /* main nav font color */
}

You can pick the codes for the colors here: https://www.colorpicker.com/

Anything else you would like to change?

I just updated to the latest version of the theme twenty-twelve (using a child-theme with it)

Could you please provide us a link to your site? It could be something with the child-theme.

This is what I see: https://i.imgur.com/vDLIlkV.png
The blue line is there. Which web browser does the problem occur on?

I am using the Twenty Fourteen theme. When I add a page, it appears in the top navigation bar.

I would like to add some links to that bar to offsite urls such as my flickr feed, YouTube videos, etc.

Like how it appears screenshot here?
https://i.imgur.com/E1pBneM.png

You won’t need to edit any code. Just go your Dashboard –> Appearance –> Menu –> go ahead and create a new custom menu there, you’ll find the option to add custom links in the Link tab. Make sure the tick the appropriate menu location in the menu settings section.

https://i.imgur.com/HlLbc17.png

Or did you mean you want to add the feed itself, not just the link to the feed?