Make the GF web site more mobile friendly

Most of the pages on the GF web site have an exemplary simple design, with just one column of text. This make them adapt exceptionally well to screens of different sizes. In particular, they should be easy to read even on smartphones. However, smartphone browsers like Mobile Safari and the default Android Browser assume that pages do *not* adapt well to small screens, so by default they emulate a big screen, forcing the user to zoom in to a part of the page to be able to read it. By adding the meta tag <meta name = "viewport" content = "width = device-width"> the big screen emulation can be turned off, allowing pages to be formatted to fit the actual screen size and text to be displayed at a readable size.
2012-09-28 20:26:13 +00:00
parent 253ddde6c3
commit 0dbe9a6d50
15 changed files with 128 additions and 24 deletions
--- a/demos/index.html
+++ b/demos/index.html
@@ -3,6 +3,7 @@
 <HEAD>
 <TITLE>Grammatical Framework Demos</TITLE>
 <link rel=stylesheet href="../css/style.css">
 <meta name = "viewport" content = "width = device-width">
 <link rel=top href="../" title="GF">
 </HEAD>
--- a/doc/gf-bibliography.html
+++ b/doc/gf-bibliography.html
@@ -1,19 +1,20 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <HTML>
 <HEAD>
-<META NAME="generator" CONTENT="http://txt2tags.sf.net">
+<META NAME="generator" CONTENT="http://txt2tags.org">
 <LINK REL="stylesheet" TYPE="text/css" HREF="../css/style.css">
-<TITLE>Grammatical Framework Bibliography</TITLE>
+<meta name = "viewport" content = "width = device-width"><TITLE>Grammatical Framework Bibliography</TITLE>
 </HEAD><BODY BGCOLOR="white" TEXT="black">
-<P ALIGN="center"><CENTER><H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>Grammatical Framework Bibliography</H1>
+<CENTER>
-<FONT SIZE="4">
+<H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>Grammatical Framework Bibliography</H1>
-<I>Aarne Ranta</I><BR>
+<FONT SIZE="4"><I>Aarne Ranta</I></FONT><BR>
-Wed Dec 14 18:13:03 2011
+<FONT SIZE="4">Fri Sep 28 22:11:33 2012</FONT>
-</FONT></CENTER>
+</CENTER>
 <P></P>
 <HR NOSHADE SIZE=1>
 <P></P>
    <UL>
    <LI><A HREF="#toc1">Publications on GF</A>
    <LI><A HREF="#toc2">Background for GF</A>
@@ -22,8 +23,10 @@ Wed Dec 14 18:13:03 2011
 <P></P>
 <HR NOSHADE SIZE=1>
 <P></P>
 <A NAME="toc1"></A>
 <H2>Publications on GF</H2>
 <P>
 In reverse temporal order:
 </P>
@@ -773,8 +776,10 @@ The type theory and type checker of GF.
 <br>
 <I>Concise theoretical presentation of GF, using the old notation prior to v0.9</I>.
 </P>
 <A NAME="toc2"></A>
 <H2>Background for GF</H2>
 <P>
 In alphabetical order:
 </P>
@@ -864,6 +869,6 @@ A. Ranta.
 <I>Interprets Lambek Calculus in type theory and defines some extensions</I>.
 </P>
-<!-- html code generated by txt2tags 2.5 (http://txt2tags.sf.net) -->
+<!-- html code generated by txt2tags 2.6 (http://txt2tags.org) -->
 <!-- cmdline: txt2tags -thtml ./doc/gf-bibliography.t2t -->
 </BODY></HTML>
--- a/doc/gf-bibliography.t2t
+++ b/doc/gf-bibliography.t2t
@@ -9,6 +9,7 @@ Aarne Ranta
 %!style:../css/style.css
 %!target:html
 %!options(html): --toc
 %!postproc(html): <TITLE> <meta name = "viewport" content = "width = device-width"><TITLE>
 %!postproc(html): #BR <br>
 %!postproc(html): <H1> <H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>
--- a/doc/gf-editor-modes.t2t
+++ b/doc/gf-editor-modes.t2t
@@ -3,6 +3,7 @@ Editor modes & IDE integration for GF
 %!style:../css/style.css
 %!options(html): --toc
 %!postproc(html): <TITLE> <meta name = "viewport" content = "width = device-width"><TITLE>
 %!postproc(html): <H1> <H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>
 We collect GF modes for various editors on this page. Contributions are
--- a/doc/gf-people.html
+++ b/doc/gf-people.html
@@ -4,6 +4,7 @@
 <head>
 <title>GF People</title>
 <link rel=stylesheet href="../css/style.css">
 <meta name = "viewport" content = "width = device-width">
 </head>
 <body>
--- a/doc/gf-quickstart.html
+++ b/doc/gf-quickstart.html
@@ -3,6 +3,7 @@
 <head>
 <title>GF Quickstart</title>
 <link rel=stylesheet href="../css/style.css">
 <meta name = "viewport" content = "width = device-width">
 </head>
--- a/doc/gf-reference.html
+++ b/doc/gf-reference.html
@@ -1,19 +1,20 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <HTML>
 <HEAD>
-<META NAME="generator" CONTENT="http://txt2tags.sf.net">
+<META NAME="generator" CONTENT="http://txt2tags.org">
 <LINK REL="stylesheet" TYPE="text/css" HREF="../css/style.css">
-<TITLE>GF Quick Reference</TITLE>
+<meta name = "viewport" content = "width = device-width"><TITLE>GF Quick Reference</TITLE>
 </HEAD><BODY BGCOLOR="white" TEXT="black">
-<P ALIGN="center"><CENTER><H1>GF Quick Reference</H1>
+<CENTER>
-<FONT SIZE="4">
+<H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>GF Quick Reference</H1>
-<I>Aarne Ranta</I><BR>
+<FONT SIZE="4"><I>Aarne Ranta</I></FONT><BR>
-April 4, 2006
+<FONT SIZE="4">April 4, 2006</FONT>
-</FONT></CENTER>
+</CENTER>
 <P></P>
 <HR NOSHADE SIZE=1>
 <P></P>
      <UL>
      <LI><A HREF="#toc1">A complete example</A>
      <LI><A HREF="#toc2">Modules and files</A>
@@ -41,8 +42,10 @@ Help on GF commands is obtained on line by the
 help command (<CODE>help</CODE>), and help on invoking
 GF with (<CODE>gf -help</CODE>).
 </P>
 <A NAME="toc1"></A>
 <H3>A complete example</H3>
 <P>
 This is a complete example of a GF grammar divided
 into three modules in files. The grammar recognizes the
@@ -51,6 +54,7 @@ phrases <I>one pizza</I> and <I>two pizzas</I>.
 <P>
 File <CODE>Order.gf</CODE>:
 </P>
 <PRE>
  abstract Order = {
  cat 
@@ -61,9 +65,11 @@ File <CODE>Order.gf</CODE>:
    Pizza : Item ;
  }
 </PRE>
 <P>
 File <CODE>OrderEng.gf</CODE> (the top file):
 </P>
 <PRE>
  --# -path=.:prelude
  concrete OrderEng of Order = 
@@ -78,9 +84,11 @@ File <CODE>OrderEng.gf</CODE> (the top file):
    Pizza  = regNoun "pizza" ;
  }
 </PRE>
 <P>
 File <CODE>Res.gf</CODE>:
 </P>
 <PRE>
  resource Res = open Prelude in {
  param Num = Sg | Pl ;
@@ -92,18 +100,21 @@ File <CODE>Res.gf</CODE>:
    } ;
  }
 </PRE>
 <P>
 To use this example, do
 </P>
 <PRE>
    % gf             -- in shell: start GF
    &gt; i OrderEng.gf  -- in GF: import grammar
    &gt; p "one pizza"  --        parse string
    &gt; l Two Pizza    --        linearize tree
 </PRE>
-<P></P>
+
 <A NAME="toc2"></A>
 <H3>Modules and files</H3>
 <P>
 One module per file.
 File named <CODE>Foo.gf</CODE> contains module named
@@ -112,32 +123,39 @@ File named <CODE>Foo.gf</CODE> contains module named
 <P>
 Each module has the structure
 </P>
 <PRE>
  moduletypename =   
    Inherits **        -- optional
    open Opens in      -- optional
    { Judgements }   
 </PRE>
 <P>
 Inherits are names of modules of the same type.
 Inheritance can be restricted:
 </P>
 <PRE>
    Mo[f,g],  -- inherit only f,g from Mo
    Lo-[f,g]  -- inheris all but f,g from Lo
 </PRE>
 <P>
 Opens are possible in <CODE>concrete</CODE> and <CODE>resource</CODE>.
 They are names of modules of these two types, possibly
 qualified:
 </P>
 <PRE>
    (M = Mo), -- refer to f as M.f or Mo.f
    (Lo = Lo) -- refer to f as Lo.f
 </PRE>
 <P>
 Module types and judgements in them:
 </P>
 <PRE>
  abstract A          -- cat, fun, def, data
  concrete C of A     -- lincat, lin, lindef, printname
@@ -154,6 +172,7 @@ Module types and judgements in them:
    CI with              instantiates a functor by
      (I = J)            instances of open interfaces
 </PRE>
 <P>
 The forms 
 <CODE>param</CODE>, <CODE>oper</CODE> 
@@ -164,15 +183,18 @@ not inherited to extensions.
 All modules can moreover have <CODE>flags</CODE> and comments.
 Comments have the forms
 </P>
 <PRE>
  -- till the end of line
  {- any number of lines between -}
  --# used for compiler pragmas
 </PRE>
 <P>
 A <CODE>concrete</CODE> can be opened like a <CODE>resource</CODE>.
 It is translated as follows:
 </P>
 <PRE>
  cat C          ---&gt;  oper C : Type = 
  lincat C = T           T ** {lock_C : {}}
@@ -180,12 +202,15 @@ It is translated as follows:
  fun f : G -&gt; C ---&gt;  oper f : A* -&gt; C* = \g -&gt; 
  lin f = t              t g ** {lock_C = &lt;&gt;}          
 </PRE>
 <P>
 An <CODE>abstract</CODE> can be opened like an <CODE>interface</CODE>.
 Any <CODE>concrete</CODE> of it then works as an <CODE>instance</CODE>.
 </P>
 <A NAME="toc3"></A>
 <H3>Judgements</H3>
 <PRE>
  cat C               -- declare category C
  cat C (x:A)(y:B x)  -- dependent category C
@@ -213,26 +238,32 @@ Any <CODE>concrete</CODE> of it then works as an <CODE>instance</CODE>.
  flags p=v           -- set value of flag p
 </PRE>
 <P>
 Judgements are terminated by semicolons (<CODE>;</CODE>).
 Subsequent judgments of the same form may share the
 keyword:
 </P>
 <PRE>
  cat C ; D ;         -- same as cat C ; cat D ;
 </PRE>
 <P>
 Judgements can also share RHS:
 </P>
 <PRE>
  fun f,g : A         -- same as fun f : A ; g : A
 </PRE>
-<P></P>
+
 <A NAME="toc4"></A>
 <H3>Types</H3>
 <P>
 Abstract syntax (in <CODE>fun</CODE>):
 </P>
 <PRE>
  C                -- basic type, if cat C
  C a b            -- basic type for dep. category
@@ -244,9 +275,11 @@ Abstract syntax (in <CODE>fun</CODE>):
  Float            -- predefined float type
  String           -- predefined string type
 </PRE>
 <P>
 Concrete syntax (in <CODE>lincat</CODE>):
 </P>
 <PRE>
  Str              -- token lists
  P                -- parameter type, if param P
@@ -259,9 +292,11 @@ Concrete syntax (in <CODE>lincat</CODE>):
                      {p1 : A ; p2 : B ; p3 : C}
  Ints n           -- type of n first integers
 </PRE>
 <P>
 Resource (in <CODE>oper</CODE>): all those of concrete, plus
 </P>
 <PRE>
  Tok              -- tokens (subtype of Str)
  A -&gt; B           -- functions from A to B
@@ -270,32 +305,40 @@ Resource (in <CODE>oper</CODE>): all those of concrete, plus
  PType            -- parameter type
  Type             -- any type
 </PRE>
 <P>
 As parameter types, one can use any finite type:
 <CODE>P</CODE> defined in <CODE>param P</CODE>,
 <CODE>Ints n</CODE>, and record types of parameter types.
 </P>
 <A NAME="toc5"></A>
 <H3>Expressions</H3>
 <P>
 Syntax trees = full function applications
 </P>
 <PRE>
  f a b              -- : C if fun f : A -&gt; B -&gt; C
  1977               -- : Int
  3.14               -- : Float
  "foo"              -- : String
 </PRE>
 <P>
 Higher-Order Abstract syntax (HOAS): functions as arguments:
 </P>
 <PRE>
  F a (\x -&gt; c)      -- : C if a : A, c : C (x : B), 
                        fun F : A -&gt; (B -&gt; C) -&gt; C
 </PRE>
 <P>
 Tokens and token lists
 </P>
 <PRE>
  "hello"            -- : Tok, singleton Str
  "hello" ++ "world" -- : Str
@@ -303,17 +346,21 @@ Tokens and token lists
  "hello" + "world"  -- : Tok, computes to "helloworld"
  []                 -- : Str, empty list
 </PRE>
 <P>
 Parameters
 </P>
 <PRE>
  Sg                   -- atomic constructor
  VPres Sg P2          -- applied constructor
  {n = Sg ; p = P3}    -- record of parameters
 </PRE>
 <P>
 Tables
 </P>
 <PRE>
  table {              -- by full branches
    Sg =&gt; "mouse" ;
@@ -334,9 +381,11 @@ Tables
  t ! p                -- select p from table t
  case e of {...}      -- same as table {...} ! e 
 </PRE>
 <P>
 Records
 </P>
 <PRE>
  {s = "Liz"; g = Fem} -- record in full form
  {s,t = "et"}         -- same as {s = "et";t= "et"}
@@ -345,17 +394,21 @@ Records
  &lt;a,b,c&gt;        -- tuple, same as {p1=a;p2=b;p3=c}
 </PRE>
 <P>
 Functions
 </P>
 <PRE>
  \x -&gt; t            -- lambda abstract
  \x,y -&gt; t          -- same as \x -&gt; \y -&gt; t
  \x,_ -&gt; t          -- binding not in t
 </PRE>
 <P>
 Local definitions
 </P>
 <PRE>
  let x : A = d in t -- let definition
  let x = d in t     -- let defin, type inferred
@@ -365,42 +418,52 @@ Local definitions
  t where {...}      -- same as let ... in t
 </PRE>
 <P>
 Free variation
 </P>
 <PRE>
  variants {x ; y}     -- both x and y possible
  variants {}          -- nothing possible
 </PRE>
 <P>
 Prefix-dependent choices
 </P>
 <PRE>
  pre {"a" ; "an" / v} -- "an" before v, "a" otherw.
  strs {"a" ; "i" ;"o"}-- list of condition prefixes
 </PRE>
 <P>
 Typed expression
 </P>
 <PRE>
  &lt;t:T&gt;                -- same as t, to help type inference
 </PRE>
 <P>
 Accessing bound variables in <CODE>lin</CODE>: use fields <CODE>$1, $2, $3,...</CODE>. 
 Example:
 </P>
 <PRE>
  fun F : (A : Set) -&gt; (El A -&gt; Prop) -&gt; Prop ; 
  lin F A B = {s = ["for all"] ++ A.s ++ B.$1 ++ B.s}
 </PRE>
-<P></P>
+
 <A NAME="toc6"></A>
 <H3>Pattern matching</H3>
 <P>
 These patterns can be used in branches of <CODE>table</CODE> and
 <CODE>case</CODE> expressions. Patterns are matched in the order in
 which they appear in the grammar.
 </P>
 <PRE>
  C                 -- atomic param constructor
  C p q             -- param constr. applied to patterns
@@ -416,9 +479,10 @@ which they appear in the grammar.
  p + "s"           -- sequence of two string patterns
  p*                -- repetition of a string pattern
 </PRE>
-<P></P>
+
 <A NAME="toc7"></A>
 <H3>Sample library functions</H3>
 <PRE>
  -- lib/prelude/Predef.gf
  drop   : Int -&gt; Tok -&gt; Tok   -- drop prefix of length
@@ -448,12 +512,14 @@ which they appear in the grammar.
    if_then_else : (A : Type) -&gt; Bool -&gt; A -&gt; A -&gt; A
    if_then_Str : Bool -&gt; Str -&gt; Str -&gt; Str
 </PRE>
-<P></P>
+
 <A NAME="toc8"></A>
 <H3>Flags</H3>
 <P>
 Flags can appear, with growing priority,
 </P>
 <UL>
 <LI>in files, judgement <CODE>flags</CODE> and without dash (<CODE>-</CODE>)
 <LI>as flags to <CODE>gf</CODE> when invoked, with dash
@@ -463,6 +529,7 @@ Flags can appear, with growing priority,
 <P>
 Some common flags used in grammars:
 </P>
 <PRE>
  startcat=cat    use this category as default 
@@ -483,19 +550,24 @@ Some common flags used in grammars:
  optimize=all       usually good for resource
  optimize=noexpand  for resource, if =all too big
 </PRE>
 <P>
 For the full set of values for <CODE>FLAG</CODE>, 
 use on-line <CODE>h -FLAG</CODE>.
 </P>
 <A NAME="toc9"></A>
 <H3>File paths</H3>
 <P>
 Colon-separated lists of directories searched in the
 given order: 
 </P>
 <PRE>
  --# -path=.:../abstract:../common:prelude
 </PRE>
 <P>
 This can be (in order of growing preference), as
 first line in the top file, as flag to <CODE>gf</CODE>
@@ -507,8 +579,10 @@ If the environment variabls <CODE>GF_LIB_PATH</CODE> is defined, its
 value is automatically prefixed to each directory to
 extend the original search path.
 </P>
 <A NAME="toc10"></A>
 <H3>Alternative grammar formats</H3>
 <P>
 <B>Old GF</B> (before GF 2.0): 
 all judgements in any kinds of modules,
@@ -519,9 +593,11 @@ if it lacks a module header.
 <P>
 <B>Context-free</B> (file <CODE>foo.cf</CODE>). The form of rules is e.g.
 </P>
 <PRE>
  Fun. S ::= NP "is" AP ;
 </PRE>
 <P>
 If <CODE>Fun</CODE> is omitted, it is generated automatically. 
 Rules must be one per line. The RHS can be empty.
@@ -529,9 +605,11 @@ Rules must be one per line. The RHS can be empty.
 <P>
 <B>Extended BNF</B> (file <CODE>foo.ebnf</CODE>). The form of rules is e.g.
 </P>
 <PRE>
  S ::= (NP+ ("is" | "was") AP | V NP*) ;
 </PRE>
 <P>
 where the RHS is a regular expression of categories
 and quoted tokens: <CODE>"foo", CAT, T U, T|U, T*, T+, T?</CODE>, or empty.
@@ -541,9 +619,11 @@ Rule labels are generated automatically.
 <B>Probabilistic grammars</B> (not a separate format).
 You can set the probability of a function <CODE>f</CODE> (in its value category) by
 </P>
 <PRE>
  --# prob f 0.009
 </PRE>
 <P>
 These are put into a file given to GF using the <CODE>probs=File</CODE> flag
 on command line. This file can be the grammar file itself.
@@ -551,20 +631,26 @@ on command line. This file can be the grammar file itself.
 <P>
 <B>Example-based grammars</B>  (file <CODE>foo.gfe</CODE>). Expressions of the form
 </P>
 <PRE>
  in Cat "example string"
 </PRE>
 <P>
 are preprocessed by using a parser given by the flag 
 </P>
 <PRE>
  --# -resource=File
 </PRE>
 <P>
 and the result is written to <CODE>foo.gf</CODE>.
 </P>
 <A NAME="toc11"></A>
 <H3>References</H3>
 <P>
 <A HREF="http://www.grammaticalframework.org/">GF Homepage</A>
 </P>
@@ -573,6 +659,6 @@ A. Ranta, Grammatical Framework: A Type-Theoretical Grammar Formalism.
 <I>The Journal of Functional Programming</I>, vol. 14:2. 2004, pp. 145-189. 
 </P>
-<!-- html code generated by txt2tags 2.5 (http://txt2tags.sf.net) -->
+<!-- html code generated by txt2tags 2.6 (http://txt2tags.org) -->
 <!-- cmdline: txt2tags -thtml ./doc/gf-reference.t2t -->
 </BODY></HTML>
--- a/doc/gf-reference.t2t
+++ b/doc/gf-reference.t2t
@@ -9,6 +9,8 @@ April 4, 2006
 %!style:../css/style.css
 %!target:html
 %!options: --toc
 %!postproc(html): <TITLE> <meta name = "viewport" content = "width = device-width"><TITLE>
 %!postproc(html): <H1> <H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>
 This is a quick reference on GF grammars. It aims to
 cover all forms of expression available when writing
--- a/doc/gf-shell-reference.t2t
+++ b/doc/gf-shell-reference.t2t
@@ -4,6 +4,7 @@ The GF Software System
 %!style:../css/style.css
 %!options(html): --toc
 %!options(html): --toc-level=4
 %!postproc(html): <TITLE> <meta name = "viewport" content = "width = device-width"><TITLE>
 %!postproc(html): <H1> <H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>
 %!postproc(html): "#VSPACE" "<hr>"
 %!postproc(html): "#NORMAL" ""
--- a/download/index.t2t
+++ b/download/index.t2t
@@ -2,6 +2,7 @@ Grammatical Framework Download and Installation
 %!style:../css/style.css
 %!postproc(html): <TITLE> <meta name = "viewport" content = "width = device-width"><TITLE>
 %!postproc(html): <TD><B> <TH>
 %!postproc(html): </B></TD> </TH>
 %!postproc(html): <H1> <H1><a href="../"><IMG src="../doc/Logos/gf0.png"></a>
--- a/eclipse/Makefile
+++ b/eclipse/Makefile
@@ -5,6 +5,7 @@ local:
 	echo "<html>\n<head>\n" > index.html
 	echo "<title>GF Eclipse Plugin</title>\n" >> index.html
 	echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"http://www.grammaticalframework.org/css/style.css\">\n" >> index.html
 	echo '<meta name = "viewport" content = "width = device-width">' >>index.html
 	echo "</head>\n<body>\n" >> index.html
 	php ~/markdown-convert.php ~/repositories/gf-eclipse-plugin/README.md index.html --append
 	echo "</body>\n</html>" >> index.html
--- a/eclipse/index.html
+++ b/eclipse/index.html
@@ -5,6 +5,7 @@
 <link rel="stylesheet" type="text/css" href="http://www.grammaticalframework.org/css/style.css">
 <meta name = "viewport" content = "width = device-width">
 </head>
 <body>
--- a/gf-book/index.html
+++ b/gf-book/index.html
@@ -4,7 +4,7 @@
 <META NAME="generator" CONTENT="http://txt2tags.org">
 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf8">
 <LINK REL="stylesheet" TYPE="text/css" HREF="../css/style.css">
-<TITLE>Grammatical Framework: Programming with Multilingual Grammars</TITLE>
+<meta name = "viewport" content = "width = device-width"><TITLE>Grammatical Framework: Programming with Multilingual Grammars</TITLE>
 </HEAD><BODY BGCOLOR="white" TEXT="black">
 <CENTER>
 <H1>Grammatical Framework: Programming with Multilingual Grammars</H1>
@@ -12,7 +12,7 @@
 </CENTER>
 <P>
-<center><img width=200mm src="gf-book-cover.png"></center>
+<center><img style="width: 200px" src="gf-book-cover.png"></center>
 </P>
 <P>
 This is the web page of the book 
--- a/gf-book/index.txt
+++ b/gf-book/index.txt
@@ -4,7 +4,8 @@ Aarne Ranta
 %!style:../css/style.css
 %!Encoding:utf8
-%!postproc(html): "#BOOKCOVER" '<center><img width=200mm src="gf-book-cover.png"></center>'
+%!postproc(html): <TITLE> <meta name = "viewport" content = "width = device-width"><TITLE>
 %!postproc(html): "#BOOKCOVER" '<center><img style="width: 200px" src="gf-book-cover.png"></center>'
 #BOOKCOVER
--- a/index.html
+++ b/index.html
@@ -3,6 +3,7 @@
 <HEAD>
 <TITLE>GF - Grammatical Framework</TITLE>
 <link rel=stylesheet href="css/style.css">
 <meta name = "viewport" content = "width = device-width">
 <script type="text/javascript">
 function sitesearch() {
  var q=document.forms[0].q.value;