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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>6.10.1&nbsp;Implementing Styles</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="inbox.css" title="default"/><link rel="stylesheet" type="text/css" href="../racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body id="doc-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist tocviewlisttopspace"><div class="tocviewtitle"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,&quot;tocview_0&quot;);">&#9658;</a></td><td></td><td><a href="index.html" class="tocviewlink" data-pltdoc="x">Scribble:<span class="mywbr"> &nbsp;</span> The Racket Documentation Tool</a></td></tr></table></div><div class="tocviewsublisttop" style="display: none;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1&nbsp;</td><td><a href="getting-started.html" class="tocviewlink" data-pltdoc="x">Getting Started</a></td></tr><tr><td align="right">2&nbsp;</td><td><a href="reader.html" class="tocviewlink" data-pltdoc="x">@ Syntax</a></td></tr><tr><td align="right">3&nbsp;</td><td><a href="generic-prose.html" class="tocviewlink" data-pltdoc="x">High-<wbr></wbr>Level Scribble API</a></td></tr><tr><td align="right">4&nbsp;</td><td><a href="plt-manuals.html" class="tocviewlink" data-pltdoc="x">Scribbling Documentation</a></td></tr><tr><td align="right">5&nbsp;</td><td><a href="lp.html" class="tocviewlink" data-pltdoc="x">Literate Programming</a></td></tr><tr><td align="right">6&nbsp;</td><td><a href="internals.html" class="tocviewselflink" data-pltdoc="x">Low-<wbr></wbr>Level Scribble API</a></td></tr><tr><td align="right">7&nbsp;</td><td><a href="running.html" class="tocviewlink" data-pltdoc="x">Running <span class="stt">scribble</span></a></td></tr><tr><td align="right"></td><td><a href="doc-index.html" class="tocviewlink" data-pltdoc="x">Index</a></td></tr></table></div></div><div class="tocviewlist"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,&quot;tocview_1&quot;);">&#9658;</a></td><td>6&nbsp;</td><td><a href="internals.html" class="tocviewlink" data-pltdoc="x">Low-<wbr></wbr>Level Scribble API</a></td></tr></table><div class="tocviewsublist" style="display: none;" id="tocview_1"><table cellspacing="0" cellpadding="0"><tr><td align="right">6.1&nbsp;</td><td><a href="layers.html" class="tocviewlink" data-pltdoc="x">Scribble Layers</a></td></tr><tr><td align="right">6.2&nbsp;</td><td><a href="reader-internals.html" class="tocviewlink" data-pltdoc="x">@ Reader Internals</a></td></tr><tr><td align="right">6.3&nbsp;</td><td><a href="core.html" class="tocviewlink" data-pltdoc="x">Structures And Processing</a></td></tr><tr><td align="right">6.4&nbsp;</td><td><a href="renderer.html" class="tocviewlink" data-pltdoc="x">Renderers</a></td></tr><tr><td align="right">6.5&nbsp;</td><td><a href="decode.html" class="tocviewlink" data-pltdoc="x">Decoding Text</a></td></tr><tr><td align="right">6.6&nbsp;</td><td><a href="doclang.html" class="tocviewlink" data-pltdoc="x">Document Language</a></td></tr><tr><td align="right">6.7&nbsp;</td><td><a href="docreader.html" class="tocviewlink" data-pltdoc="x">Document Reader</a></td></tr><tr><td align="right">6.8&nbsp;</td><td><a href="xref.html" class="tocviewlink" data-pltdoc="x">Cross-<wbr></wbr>Reference Utilities</a></td></tr><tr><td align="right">6.9&nbsp;</td><td><a href="tag.html" class="tocviewlink" data-pltdoc="x">Tag Utilities</a></td></tr><tr><td align="right">6.10&nbsp;</td><td><a href="config.html" class="tocviewselflink" data-pltdoc="x">Extending and Configuring Scribble Output</a></td></tr></table></div></div><div class="tocviewlist"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,&quot;tocview_2&quot;);">&#9660;</a></td><td>6.10&nbsp;</td><td><a href="config.html" class="tocviewlink" data-pltdoc="x">Extending and Configuring Scribble Output</a></td></tr></table><div class="tocviewsublistbottom" style="display: block;" id="tocview_2"><table cellspacing="0" cellpadding="0"><tr><td align="right">6.10.1&nbsp;</td><td><a href="" class="tocviewselflink" data-pltdoc="x">Implementing Styles</a></td></tr><tr><td align="right">6.10.2&nbsp;</td><td><a href="config-style.html" class="tocviewlink" data-pltdoc="x">Configuring Output</a></td></tr><tr><td align="right">6.10.3&nbsp;</td><td><a href="builtin-css.html" class="tocviewlink" data-pltdoc="x">Base CSS Style Classes</a></td></tr><tr><td align="right">6.10.4&nbsp;</td><td><a href="manual-css.html" class="tocviewlink" data-pltdoc="x">Manual CSS Style Classes</a></td></tr><tr><td align="right">6.10.5&nbsp;</td><td><a href="builtin-latex.html" class="tocviewlink" data-pltdoc="x">Base Latex Macros</a></td></tr><tr><td align="right">6.10.6&nbsp;</td><td><a href="latex-prefix.html" class="tocviewlink" data-pltdoc="x">Latex Prefix Support</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, &quot;6.1&quot;, &quot;../&quot;);" onfocus="this.style.color=&quot;black&quot;; this.style.textAlign=&quot;left&quot;; if (this.value == &quot;...search manuals...&quot;) this.value=&quot;&quot;;" onblur="if (this.value.match(/^ *$/)) { this.style.color=&quot;#888&quot;; this.style.textAlign=&quot;center&quot;; this.value=&quot;...search manuals...&quot;; }"/></form>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">top</a></span><span class="navright">&nbsp;&nbsp;<a href="config.html" title="backward to &quot;6.10 Extending and Configuring Scribble Output&quot;" data-pltdoc="x">&larr; prev</a>&nbsp;&nbsp;<a href="config.html" title="up to &quot;6.10 Extending and Configuring Scribble Output&quot;" data-pltdoc="x">up</a>&nbsp;&nbsp;<a href="config-style.html" title="forward to &quot;6.10.2 Configuring Output&quot;" data-pltdoc="x">next &rarr;</a></span>&nbsp;</div><h5 x-source-module="(lib &quot;scribblings/scribble/scribble.scrbl&quot;)" x-part-tag="&quot;extra-style&quot;">6.10.1<tt>&nbsp;</tt><a name="(part._extra-style)"></a>Implementing Styles</h5><p>When a string is used as a style in an <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._element%29%29" class="RktValLink" data-pltdoc="x">element</a></span>,
a <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._multiarg-element%29%29" class="RktValLink" data-pltdoc="x">multiarg-element</a></span>, <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._paragraph%29%29" class="RktValLink" data-pltdoc="x">paragraph</a></span>, <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._table%29%29" class="RktValLink" data-pltdoc="x">table</a></span>,
<span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._itemization%29%29" class="RktValLink" data-pltdoc="x">itemization</a></span>, <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._nested-flow%29%29" class="RktValLink" data-pltdoc="x">nested-flow</a></span>, or
<span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._compound-paragraph%29%29" class="RktValLink" data-pltdoc="x">compound-paragraph</a></span>, it corresponds to a CSS class for HTML
output or a Latex macro/environment for Latex output. In Latex output,
the string is used as a command name for a <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._paragraph%29%29" class="RktValLink" data-pltdoc="x">paragraph</a></span>
and an environment name for a <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._table%29%29" class="RktValLink" data-pltdoc="x">table</a></span>, <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._itemization%29%29" class="RktValLink" data-pltdoc="x">itemization</a></span>,
<span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._nested-flow%29%29" class="RktValLink" data-pltdoc="x">nested-flow</a></span>, or <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._compound-paragraph%29%29" class="RktValLink" data-pltdoc="x">compound-paragraph</a></span>; if the style has
a <span class="RktVal">'</span><span class="RktVal">command</span> <a href="core.html#%28tech._style._property%29" class="techoutside" data-pltdoc="x"><span class="techinside">style property</span></a> for a <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._nested-flow%29%29" class="RktValLink" data-pltdoc="x">nested-flow</a></span> or
<span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._compound-paragraph%29%29" class="RktValLink" data-pltdoc="x">compound-paragraph</a></span>, then the style name is used as a command
instead of an environment; and if the style has
a <span class="RktVal">'</span><span class="RktVal">multicommand</span> <a href="core.html#%28tech._style._property%29" class="techoutside" data-pltdoc="x"><span class="techinside">style property</span></a> for a <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._nested-flow%29%29" class="RktValLink" data-pltdoc="x">nested-flow</a></span>,
then the style name is used as a command with multiple arguments.
In addition, for an itemization, the style
string is suffixed with <span class="RktVal">"Item"</span> and used as a CSS class or Latex
macro name to use for the itemization&rsquo;s items (in place of <span class="stt">\item</span>
in the case of Latex).</p><p>To add a mapping from your own style name to a CSS configuration, add
a <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fhtml-properties..rkt%29._css-addition%29%29" class="RktValLink" data-pltdoc="x">css-addition</a></span> structure instance to a style&rsquo;s <a href="core.html#%28tech._style._property%29" class="techoutside" data-pltdoc="x"><span class="techinside">style property</span></a>
list. To map a style name to a Latex macro or environment, add a
<span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Flatex-properties..rkt%29._tex-addition%29%29" class="RktValLink" data-pltdoc="x">tex-addition</a></span> structure instance. A <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fhtml-properties..rkt%29._css-addition%29%29" class="RktValLink" data-pltdoc="x">css-addition</a></span> or
<span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Flatex-properties..rkt%29._tex-addition%29%29" class="RktValLink" data-pltdoc="x">tex-addition</a></span> is normally associated with the style whose name
is implemented by the adition, but it can also be added to the style
for an enclosing part.</p><p>Scribble includes a number of predefined styles that are used by the
exports of <span class="RktSym">scribble/base</span>. You can use them or redefine
them. The styles are specified by <span class="stt">"scribble.css"</span> and
<span class="stt">"scribble.tex"</span> in the <span class="stt">"scribble"</span> collection.</p><p>The styles used by <a href="manual.html" class="RktModLink" data-pltdoc="x"><span class="RktSym">scribble/manual</span></a> are implemented by
<span class="stt">"racket.css"</span> and <span class="stt">"racket.tex"</span> in the
<span class="stt">"scribble"</span> collection. Other libraries, such as
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=scriblib&amp;rel=autobib.html&amp;version=6.1" class="RktModLink Sq" data-pltdoc="x"><span class="RktSym">scriblib/autobib</span></a>, similarly implement styles through files
that are associated by <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fhtml-properties..rkt%29._css-addition%29%29" class="RktValLink" data-pltdoc="x">css-addition</a></span> and <span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Flatex-properties..rkt%29._tex-addition%29%29" class="RktValLink" data-pltdoc="x">tex-addition</a></span>
<a href="core.html#%28tech._style._property%29" class="techoutside" data-pltdoc="x"><span class="techinside">style properties</span></a>.</p><p>To avoid collisions with future additions to Scribble, start your
style name with an uppercase letter that is not <span class="RktInBG"><span class="hspace"></span><span class="RktIn">S</span><span class="hspace"></span></span>. An
uppercase letter helps to avoid collisions with macros defined by
Latex packages, and future styles needed by <a href="base.html" class="RktModLink" data-pltdoc="x"><span class="RktSym">scribble/base</span></a> and
<a href="manual.html" class="RktModLink" data-pltdoc="x"><span class="RktSym">scribble/manual</span></a> will start with <span class="RktInBG"><span class="hspace"></span><span class="RktIn">S</span><span class="hspace"></span></span>.</p><p>For example, a Scribble document</p><p><table cellspacing="0" cellpadding="0"><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">#lang scribble/manual</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">@(require scribble/core</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="stt">scribble/html-properties</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="stt">scribble/latex-properties)</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">@(define inbox-style</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;&nbsp;</span><span class="stt">(make-style "InBox"</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="stt">(list (make-css-addition "inbox.css")</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="stt">(make-tex-addition "inbox.tex"))))</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">@title{Quantum Pet}</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">Do not open: @elem[#:style inbox-style]{Cat}</span></p></td></tr></table></p><p>combined with an <span class="stt">"inbox.css"</span> that contains</p><p><table cellspacing="0" cellpadding="0"><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">.InBox {</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;</span><span class="stt">padding: 0.2em;</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt"></span><span class="hspace">&nbsp;&nbsp;</span><span class="stt">border: 1px solid #000000;</span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">}</span></p></td></tr></table></p><p>and an <span class="stt">"inbox.tex"</span> that contains</p><p><table cellspacing="0" cellpadding="0"><tr><td><p><span class="hspace">&nbsp;&nbsp;</span><span class="stt">\newcommand{\InBox}[1]{\fbox{#1}}</span></p></td></tr></table></p><p>generates</p><blockquote><p><span style="font-weight: bold">Quantum Pet</span></p><p>Do not open: <span class="InBox">Cat</span></p></blockquote><p><div class="SIntrapara"><a name="(idx._(gentag._13._(lib._scribblings/scribble/scribble..scrbl)))"></a>Scribble documents can also embed specific html tags and
attributes. For example, this Scribble document:
</div><div class="SIntrapara"><blockquote class="SCodeFlow"><table cellspacing="0" cellpadding="0" class="RktBlk"><tr><td><span class="RktMeta">#lang</span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><a href="base.html" class="RktModLink" data-pltdoc="x"><span class="RktSym">scribble/base</span></a><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="RktMeta">&#160;</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="RktPn">@</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktSym">scribble/core</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktSym">scribble/html-properties</span><span class="RktPn">)</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="RktMeta">&#160;</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="RktPn">@</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=define.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._define%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">define</a></span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktSym">external-image</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktPn">(</span><span class="RktSym"><a href="base.html#%28def._%28%28lib._scribble%2Fbase..rkt%29._elem%29%29" class="RktValLink" data-pltdoc="x">elem</a></span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktPn">#:style</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktPn">(</span><span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fcore..rkt%29._style%29%29" class="RktValLink" data-pltdoc="x">style</a></span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktVal">#f</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=pairs.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._list%2529%2529&amp;version=6.1" class="RktValLink Sq" data-pltdoc="x">list</a></span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktPn">(</span><span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fhtml-properties..rkt%29._alt-tag%29%29" class="RktValLink" data-pltdoc="x">alt-tag</a></span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktVal">"img"</span><span class="RktPn">)</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktPn">(</span><span class="RktSym"><a href="core.html#%28def._%28%28lib._scribble%2Fhtml-properties..rkt%29._attributes%29%29" class="RktValLink" data-pltdoc="x">attributes</a></span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="RktMeta"></span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=quote.html%23%2528form._%2528%2528quote._%7E23%7E25kernel%2529._quote%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">'</a></span><span class="RktPn">(</span><span class="RktPn">(</span><span class="RktSym">src</span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktMeta">.</span><span class="RktMeta"></span><span class="hspace">&nbsp;</span><span class="RktMeta"></span><span class="RktVal">"http://racket-lang.org/icon.png"</span><span class="RktPn">)</span><span class="RktPn">)</span><span class="RktPn">)</span><span class="RktPn">)</span><span class="RktPn">)</span><span class="RktPn">)</span><span class="RktPn">)</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="RktMeta">&#160;</span><span class="RktMeta"></span></td></tr><tr><td><span class="RktMeta"></span><span class="RktPn">@</span><span class="RktSym">external-image</span><span class="RktMeta"></span></td></tr></table></blockquote></div></p><p>renders as the the Racket logo at the url
<a href="http://racket-lang.org/logo.png"><span class="url">http://racket-lang.org/logo.png</span></a>
when producing html.</p><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, &quot;6.1&quot;, &quot;../&quot;);" onfocus="this.style.color=&quot;black&quot;; this.style.textAlign=&quot;left&quot;; if (this.value == &quot;...search manuals...&quot;) this.value=&quot;&quot;;" onblur="if (this.value.match(/^ *$/)) { this.style.color=&quot;#888&quot;; this.style.textAlign=&quot;center&quot;; this.value=&quot;...search manuals...&quot;; }"/></form>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">top</a></span><span class="navright">&nbsp;&nbsp;<a href="config.html" title="backward to &quot;6.10 Extending and Configuring Scribble Output&quot;" data-pltdoc="x">&larr; prev</a>&nbsp;&nbsp;<a href="config.html" title="up to &quot;6.10 Extending and Configuring Scribble Output&quot;" data-pltdoc="x">up</a>&nbsp;&nbsp;<a href="config-style.html" title="forward to &quot;6.10.2 Configuring Output&quot;" data-pltdoc="x">next &rarr;</a></span>&nbsp;</div></div></div><div id="contextindicator">&nbsp;</div></body></html>