## Using HTML You can use most HTML tags in TWiki topics without a problem. This is useful where you want to add some content that is formatted in a way that is not supported using [[TWiki shorthand|Main/WebHome#TWikiShorthand]], for example, you can write `deleted text` to get deleted text. There are a few usability and technical considerations to keep in mind: - On collaboration pages, it's better **not** to use HTML, but to use [[TWiki shorthand|Main/WebHome#TWikiShorthand]] instead - this keeps the text uncluttered and easy to edit using the plaintext editor. - If you _must_ use HTML, use [XHTML 1.0 Transitional](http://www.w3.org/TR/xhtml1/) syntax. - Use `..` tags around blocks of HTML to avoid accidental interpretation of [[TWiki shorthand|Main/WebHome#TWikiShorthand]] within the HTML. - %X% Script tags may be filtered out, at the discretion of your TWiki administrator. Recommendations when pasting HTML from other sources (using the plain-text editor): - Copy only text between `` and `` tags. - Remove all empty lines. TWiki inserts `

` paragraph tags on empty lines, which causes problems if done between HTML tags that do not allow paragraph tags, like for example between table tags. - Remove leading spaces. TWiki might interpret some text as lists. - Do not span a tag over more than one line. TWiki requires that the opening and closing angle brackets - **<...>** - of a HTML tag are on the same line, or the tag will be broken. - In your HTML editing program, save without hard line breaks on text wrap. When using a WYSIWYG editor, you can just copy-paste directly into the editor, and the content will be converted to [[TWiki shorthand|Main/WebHome#TWikiShorthand]] automatically when you save.