To edit a page, click on "edit" link at the top of the page or along one of its edges.
After adding to or changing the wikitext, press "Show preview", which produces the corresponding webpage in your browser but does not make it publicly available yet (not until you press "Save page"). Errors in formatting, links, tables, etc., are often much easier to discover from the rendered page than from the raw wikitext.
If you are not satisfied you can make more changes and preview the page as many times as necessary. Then write a short edit summary in the small text field below the edit-box and when finished press "Save page". Depending on your system, pressing the "Enter" key while the edit box is not active (i.e., there is no typing cursor in it) may have the same effect as pressing "Save page".
You may find it more convenient to copy and paste the text first into your favorite text editor, edit and spell check it there, and then paste it back into your web browser to preview. This way, you can also keep a local backup copy of the pages you have edited. It also allows you to make changes offline, but before you submit your changes, please make sure nobody else has edited the page since you saved your local copy (by checking the page history), otherwise you may accidentally revert someone else's edits. If someone has edited it since you copied the page, you'll have to merge their edits into your new version (you can find their specific edits by using the "diff" feature of the page history). These issues are handled automatically by the Mediawiki software if you edit the page online, retrieving and submitting the wikicode in the same text box.
 Dummy edit
If the wikitext is not changed no edit will be recorded and the edit summary is discarded.
A dummy edit is a change in wikitext that has no effect on the rendered page. This allows an edit summary, and is useful for correcting a previous edit summary, or an accidental marking of a previous edit as "minor" (see below). Also it is sometimes needed to refresh the cache of some item in the database.
 Minor edits
When editing a page, a logged in user has the option of flagging the edit as a "minor edit". When to use this is somewhat a matter of personal preference. The rule of thumb is that an edit of a page that is limited to spelling corrections, formatting, and minor rearranging of text should be flagged as a "minor edit". A major edit is anything that makes the entry worth looking at for someone watching the article; any "real" change, even if it only involves a single word, is a major edit. This feature is important, because users can choose to hide minor edits in their view of the recent changes to keep the volume of edits down to a manageable level.
The reason for not allowing a user who is not logged in to mark an edit as minor is that vandalism could then be marked as a minor edit, in which case it would stay unnoticed longer. This limitation is another reason to log in.
 The wiki markup
In the left column of the table below, you can see what effects are possible. In the right column, you can see how those effects were achieved. In other words, to make text look like it looks in the left column, type it in the format you see in the right column.
You may want to keep this page open in a separate browser window for reference. If you want to try out things without danger of doing any harm, you can do so in the Sandbox.
 Sections, paragraphs, lists and lines
|What it looks like||What you type|
Start your sections with header lines:
== New section == === Subsection === ==== Sub-subsection ====
A single new line has no effect on the layout.
But an empty line
starts a new paragraph.
A single newline has no effect on the layout. But an empty line starts a new paragraph.
|You can break lines
without starting a new paragraph.
Sufficient as wikitext code is