Compose tips

Text Formats

Filtered HTML

  • Allowed HTML tags: <a> <em> <strong> <b> <i> <strike> <center> <del> <cite> <code> <pre> <ul> <ol> <li> <dl> <dt> <dd> <p> <br> <h1> <h2> <h3> <h4> <table> <tr> <th> <td> <img> <hr> <sup> <sub> <blockquote> <span> <font> <iframe>

    This site allows HTML content. While learning all of HTML may feel intimidating, learning how to use a very small number of the most basic HTML "tags" is very easy. This table provides examples for each tag that is enabled on this site.

    For more information see W3C's HTML Specifications or use your favorite search engine to find other sites that explain HTML.

    Tag DescriptionYou TypeYou Get
    Anchors are used to make links to other pages.<a href="https://www.arbinada.com">Mechanics of software</a>Mechanics of software
    Emphasized<em>Emphasized</em>Emphasized
    Strong<strong>Strong</strong>Strong
    Bolded<b>Bolded</b>Bolded
    Italicized<i>Italicized</i>Italicized
    No help provided for tag strike.
    No help provided for tag center.
    Deleted<del>Deleted</del>Deleted
    Cited<cite>Cited</cite>Cited
    Coded text used to show programming source code<code>Coded</code>Coded
    Preformatted<pre>Preformatted</pre>
    Preformatted
    Unordered list - use the <li> to begin each list item<ul> <li>First item</li> <li>Second item</li> </ul>
    • First item
    • Second item
    Ordered list - use the <li> to begin each list item<ol> <li>First item</li> <li>Second item</li> </ol>
    1. First item
    2. Second item
    No help provided for tag li.
    Definition lists are similar to other HTML lists. <dl> begins the definition list, <dt> begins the definition term and <dd> begins the definition description.<dl> <dt>First term</dt> <dd>First definition</dd> <dt>Second term</dt> <dd>Second definition</dd> </dl>
    First term
    First definition
    Second term
    Second definition
    No help provided for tag dt.
    No help provided for tag dd.
    By default paragraph tags are automatically added, so use this tag to add additional ones.<p>Paragraph one.</p> <p>Paragraph two.</p>

    Paragraph one.

    Paragraph two.
    By default line break tags are automatically added, so use this tag to add additional ones. Use of this tag is different because it is not used with an open/close pair like all the others. Use the extra " /" inside the tag to maintain XHTML 1.0 compatibilityText with <br />line breakText with
    line break
    Heading<h1>Title</h1>

    Title
    Heading<h2>Subtitle</h2>

    Subtitle
    Heading<h3>Subtitle three</h3>

    Subtitle three
    Heading<h4>Subtitle four</h4>

    Subtitle four
    Table<table> <tr><th>Table header</th></tr> <tr><td>Table cell</td></tr> </table>
    Table header
    Table cell
    No help provided for tag tr.
    No help provided for tag th.
    No help provided for tag td.
    No help provided for tag img.
    No help provided for tag hr.
    Superscripted<sup>Super</sup>scriptedSuperscripted
    Subscripted<sub>Sub</sub>scriptedSubscripted
    Block quoted<blockquote>Block quoted</blockquote>
    Block quoted
    No help provided for tag span.
    No help provided for tag font.
    No help provided for tag iframe.

    Most unusual characters can be directly entered without any problems.

    If you do encounter problems, try using HTML character entities. A common example looks like &amp; for an ampersand & character. For a full list of entities see HTML's entities page. Some of the available characters include:

    Character DescriptionYou TypeYou Get
    Ampersand&amp;&
    Greater than&gt;>
    Less than&lt;<
    Quotation mark&quot;"
  • Lines and paragraphs are automatically recognized. The <br /> line break, <p> paragraph and </p> close paragraph tags are inserted automatically. If paragraphs are not recognized simply add a couple blank lines.

  • Syntax highlighting of source code can be enabled with the following tags:

    • Generic syntax highlighting tags: "<blockcode>", "<pre>", "<code>".
    • Language specific syntax highlighting tags: .

    Options and tips:

    • The language for the generic syntax highlighting tags can be specified with one of the attribute(s): type, lang, language, class. The possible values are: "asm" (for ASM), "bash" (for Bash), "c" (for C), "cadlisp" (for CAD Lisp), "cpp" (for C++), "cpp-qt" (for C++ (Qt)), "csharp" (for C#), "delphi" (for Delphi), "drupal6" (for Drupal 6), "fortran" (for Fortran), "go" (for Go), "html4strict" (for HTML), "html5" (for HTML5), "java" (for Java), "javascript" (for Javascript), "lisp" (for Lisp), "modula3" (for Modula-3), "pascal" (for Pascal), "php" (for PHP), "plsql" (for PL/SQL), "python" (for Python), "ruby" (for Ruby), "scala" (for Scala), "sql" (for SQL), "tsql" (for T-SQL), "vb" (for Visual Basic), "xml" (for XML).
    • Line numbering can be enabled/disabled with the attribute "linenumbers". Possible values are: "off" for no line numbers, "normal" for normal line numbers and "fancy" for fancy line numbers (every nth line number highlighted). The start line number can be specified with the attribute "start", which implicitly enables normal line numbering. For fancy line numbering the interval for the highlighted line numbers can be specified with the attribute "fancy", which implicitly enables fancy line numbering.
    • If the source code between the tags contains a newline (e.g. immediatly after the opening tag), the highlighted source code will be displayed as a code block. Otherwise it will be displayed inline.
    • A title can be added to a code block with the attribute "title".

    Defaults:

    • Default highlighting mode for generic syntax highlighting tags: when no language attribute is specified, no syntax highlighting will be done.
    • Default line numbering: no line numbers.

    Examples:

    You typeYou get
    <blockcode>foo = "bar";</blockcode>Inline code with the default syntax highlighting mode.
    <blockcode>
    foo = "bar";
    baz = "foz";
    </blockcode>    		Code block with the default syntax highlighting mode.
    <blockcode lang="ruby" linenumbers="normal">
    foo = "bar";
    baz = "foz";
    </blockcode>    		Code block with syntax highlighting for Ruby source code
    and normal line numbers.
    <blockcode language="ruby" start="23" fancy="7">
    foo = "bar";
    baz = "foz";
    </blockcode>    		Code block with syntax highlighting for Ruby source code,
    line numbers starting from 23
    and highlighted line numbers every 7th line.
  • Web page addresses and e-mail addresses turn into links automatically.

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs are automatically recognized. The <br /> line break, <p> paragraph and </p> close paragraph tags are inserted automatically. If paragraphs are not recognized simply add a couple blank lines.