Hi there and welcome! It's pretty laid back here, and the basics are really just write a fic and then post it and that's as complicated as it gets!

You can find the comm rules here in the profile but the quick version is: all fic should be f/f and between 100 and 1000 words, and you can write based on either the current weekly prompt or for the prompts at the ongoing Sappho challenge.

For posting: here's a link to post here. It doesn't really matter what you put in the subject line, but the usual thing is to say which challenge/prompt you're writing for.

In the body of the post it's standard to use a header to let readers know what your story's about. If you look at the comm you can see the kind of thing most people use, but the standard is something like:

Title:
Fandom:
Pairing:
Rating:
Word Count: (which is isn't strictly necessary, but when I do the prompt post for the week you get a heart awarded based on your word count)
Summary:

You can then either post your fic here in the comm, following on from the header, or post it somewhere else (like AO3 or your personal journal) and provide a link. If you post the fic here, then if it's over 100 words or rated higher than PG-13 it needs to go under a cut. You cand find an explanation of how to use a cut here in the dreamwidth faq.

If you want to post a big bunch of stories all at once, it's usual to put them all in one entry rather than in separate entries.

All the fic here is tagged with fandom, author and challenge tags. You can tag your post yourself using the tag section below the big entry box on the posting page or I can just do it for you after you post (which is not a problem at all!) Only the mod can create new tags, so as a new author, I'll make a tag for you once you've made your first post and if you're writing a fandom that hasn't been featured here before, I'll make a tag for that too.

I'm trying to think of anything else, but I'm sure I've probably missed something really obvious, so please just ask if you have any other questions!

You're welcome! And yeah, the profile is more the rules of the comm, when it comes to the nitty gritty of posting and stuff I can see, reading it over, there's a lot of assumed knowledge there. I will look at at least putting some links in to the relevant bits of the dreamwidth FAQ so it's a bit more explanatory.

One thing with the cuts: are you using the html editor or rich text editor to post? You can swap between them using the links in the top right hand corner of the entry box on the posting page, and I think rich text is the default.

Because (in my opinion, anyway) cuts are way easier using the html editor. (To confess: I have been on dreamwidth since it started and livejournal for years before that and I still sometimes can't get cuts to work using rich text!)

The relevant bit from the FAQ is:

"To make a cut with the HTML Editor, type < cut > before the text you want to hide under a cut, then < /cut > after you've entered the text you want to be hidden. If you'd like to replace the usual "Read more..." cut text, enter < cut text="your text here" > "

(But without the spaces between the "<" and ">" and the word "cut", I had to put those because it's the only way it'll show up in a comment!)

Personally I find that about a thousand times simpler than messing around with trying to highlight text and stuff, so it might work better for you if you haven't tried it already.

And it's no problem at all, like I said, please ask if there's anything else! I know how totally frustrating it can be trying to get a handle on all the ins and outs of somewhere new!