Appendix C

Browser Comparison Chart

by Stephen Le Hunte

Table C.1 lists all the HTML 3.2 elements and attributes and indicates which browsers support them.

Table C.1. Comparison of HTML across three popular browsers.

Element
Attribute
Internet Explorer
Netscape Navigator
ncSA Mosaic
<!-- ...>
 
*
*
*
<!DOCTYPE ...>
 
*
*
*
<A ...>
 
*
*
*
 
...HREF
*
*
*
 
Mailto : ...TITLE*
 
 
 
 
...NAME
*
*
*
 
...TITLE
*
*
*
 
...REL
*
*
*
 
...REV
*
*
*
 
...URN
*
*
*
 
...METHODS
*
*
*
 
...TARGET
 
*
 
<ADDRESS>
 
*
*
*
<APPLET ...>
 
*
 
 
 
...CODEBASE
 
*
 
 
...CODE
 
*
 
 
...ALT
 
*
 
 
...NAME
 
*
 
 
...WIDTH/HEIGHT
 
*
 
 
...ALIGN
 
*
 
 
...VSPACE/HSPACE
 
*
 
 
...PARAM NAME/VALUE
 
*
 
<B>
 
*
*
*
<BASE ...>
 
*
*
*
 
...HREF
*
*
*
 
...TARGET
 
*
 
<BASEFONT ...>
 
*
*
 
 
...SIZE
*
*
 
 
 
(only visible when FONT SIZE=used too)
 
 
 
...FACE
*
 
 
<BGSOUND ...>
 
*
 
*
 
 
 
 
(will spawn player for .mid files)
 
...LOOP
*
 
*
 
...DELAY
 
 
*
<BIG>
 
*
*
 
<BLINK>
 
 
*
 
<BLOCKQUOTE>
 
*
*
*
<BODY ...>
 
*
*
*
 
...BACKGROUND
*
*
*
 
...TEXT
*
*
*
 
 
 
 
(using color names is reliable)
 
...LINK
*
*
*
 
...VLINK
*
*
*
 
...ALINK
 
*
 
 
...BGCOLOR
*
*
*
 
...BGPROPERTIES
*
 
 
 
...LEFTMARGIN
*
 
 
 
...TOPMARGIN
*
 
 
<BR>
 
*
*
*
 
...CLEAR
*
*
 
<CAPTION>
 
*
*
*
 
...ALIGN
*
*
*
 
 
(top, bottom, left, right, center)
(top, bottom)
(top, bottom)
 
...VALIGN
*
 
 
 
 
(top, bottom)
 
 
<CENTER>
 
*
*
*
<CITE>
 
*
*
*
<CODE>
 
*
*
*
<COL>
 
*
 
 
 
...SPAN
*
 
 
 
...ALIGN
*
 
 
<COLGROUP>
 
*
 
 
 
...SPAN
*
 
 
 
...ALIGN
*
 
 
 
...VALIGN
*
 
 
<COMMENT>
 
*
 
*
<DFN>
 
*
 
 
<DIR>
 
*
*
*
 
 
(no bullet)
 
 
<DIV>
 
 
*
 
 
...ALIGN
 
*
 
 
 
 
(left, right, center)
 
<DL>
 
*
*
*
<DT>
 
*
*
*
<DD>
 
*
*
*
 
...COMPACT
 
*
 
<DT>
 
*
*
*
<EM>
 
*
*
*
<EMBED ...>
 
 
*
 
<FONT ...>
 
*
*
 
 
...SIZE
*
*
 
 
...COLOR
*
*
 
 
...FACE
*
 
 
<FORM>
 
*
*
*
<FRAME ...>
 
 
*
 
 
...SRC
 
*
 
 
...NAME
 
*
 
 
...MARGINWIDTH
 
*
 
 
...MARGINHEIGHT
 
*
 
 
...SCROLLING
 
*
 
 
...NORESIZE
 
*
 
 
...FRAMEBORDER
*
 
 
 
...FRAMESPACING
*
 
 
<FRAMESET ...>
 
*
*
 
 
...ROWS
*
*
 
 
...COLS
*
*
 
<H ALIGN= ...>
 
*
*
*
 
 
(center only)
(right, left, center)
(right, left, center)
<H1>
 
*
*
*
<H2>
 
*
*
*
<H3>
 
*
*
*
<H4>
 
*
*
*
<H5>
 
*
*
*
<H6>
 
*
*
*
<HEAD>
 
*
*
*
<HR ...>
 
*
*
*
 
...SIZE
*
*
*
 
...WIDTH
*
*
*
 
...ALIGN
*
*
*
 
...NOSHADE
*
*
*
 
...COLOR
*
 
 
<HTML>
 
*
*
*
<I>
 
*
*
*
<IMG ...>
 
*
*
*
 
...ALIGN
*
*
*
 
 
 
 
(top, middle, bottom only)
 
...ALT
*
*
*
 
...ISMAP
*
*
*
 
...SRC
*
*
*
 
...WIDTH
*
*
*
 
...HEIGHT
*
*
*
 
 
 
 
(image can't be distorted)
 
...BORDER
*
*
 
 
 
(only when image is a link)
 
 
 
...VSPACE
*
*
 
 
...HSPACE
*
*
 
 
...LOWSRC
 
*
 
 
...USEMAP
*
*
*
 
...VRML
*
 
<INPUT ...>
 
*
*
*
 
...ALIGN
*
*
*
 
...chECKED
*
*
*
 
...MAXLENGTH
*
*
*
 
...NAME
*
*
*
 
...SIZE
*
*
*
 
...SRC
*
*
*
 
...TYPE
*
*
*
 
...VALUE
*
*
*
<ISINDEX ...>
 
*
*
*
 
...PROMPT
*
*
 
<KBD>
 
*
*
*
<LI>
 
*
*
*
<LINK ...>
 
*
*
*
<LISTING>
 
*
*
*
 
 
(will translate special characters)
(renders characters to the line and translates special characters)
 
<MAP ...>
 
*
*
*
 
...SHAPE
*
*
*
 
...COORDS
*
*
*
 
...AREA
*
*
*
<MARQUEE ...>
 
*
 
 
 
...ALIGN
*
 
 
 
...BEHAVIOR
*
 
 
 
...BGCOLOR
*
 
 
 
...DIRECTION
*
 
 
 
...HEIGHT
*
 
 
 
...WIDTH
*
 
 
 
...HSPACE
*
 
 
 
...LOOP
*
 
 
 
...SCROLLAMOUNT
*
 
 
 
...SCROLLDELAY
*
 
 
 
...VSPACE
*
 
 
<MENU>
 
*
*
*
 
 
(no bullet)
 
 
<META ...>
 
*
*
*
 
...HTTP-EQUIV
*
*
*
 
...NAME
*
*
*
 
...CONTENT
*
*
*
<NEXTID ...>
 
*
*
*
<NOBR>
 
*
*
 
<NOFRAMES>
 
*
*
 
<OBJECT>
 
*
 
 
<PARAM>
 
*
 
 
<OL ...>
 
*
*
*
 
...TYPE
*
*
 
 
...START
*
*
 
 
...VALUE
*
*
 
<OPTION>
 
*
*
*
<P>
 
*
*
*
 
...ALIGN
*
*
*
 
 
(center only)
(left, right, center)
(left, right, center)
<PLAINTEXT>
 
*
*
*
 
 
(allows closing element)
 
(allows closing element)
<PRE>
 
*
*
*
<S>
 
*
 
*
<SAMP>
 
*
*
*
<SCRIPT ...>
 
*
*
 
 
...LANGUAGE
*
*
 
 
...SRC
*
*
 
<SELECT>
 
*
*
*
<SMALL>
 
*
*
 
<SOUND ...>
*
 
 
 
 
 
 
 
(.wav only)
 
...SRC*
 
 
 
 
...DELAY*
 
 
 
<STRIKE>
 
*
*
*
<STRONG>
 
*
*
*
<SUB>
 
*
*
*
<SUP>
 
*
*
*
<TABLE ...>
 
*
*
*
 
...BORDER
*
*
*
 
...CELLSPACING
*
*
*
 
...CELLPADDING
*
*
*
 
...WIDTH
*
*
*
 
...HEIGHT
*
*
*
 
...ALIGN
*
*
 
 
...VALIGN
*
 
 
 
...BGCOLOR
*
 
 
 
...BORDERCOLOR
*
 
 
 
...BORDERCOLORLIGHT
*
 
 
 
...BORDERCOLORDARK
*
 
 
 
...BACKGROUND
*
 
 
 
...FRAME
*
 
 
 
...RULES
*
 
 
<TBODY>
 
*
 
 
<TD ...>
 
*
*
*
 
...ROWSPAN
*
*
*
 
...COLSPAN
*
*
*
 
...ALIGN
*
*
 
 
...VALIGN
*
*
*
 
...WIDTH
*
*
 
 
...HEIGHT
*
 
 
 
...NOWRAP
*
*
 
 
...BGCOLOR
*
 
 
 
...BORDERCOLOR
*
 
 
 
...BORDERCOLORLIGHT
*
 
 
 
...BORDERCOLORDARK
*
 
 
 
...BACKGROUND
*
 
 
<TEXTAREA ...>
 
*
*
*
 
...NAME
*
*
*
 
...ROWS
*
*
*
 
...COLS
*
*
*
 
...WRAP
 
*
 
<TFOOT>
 
*
 
 
<TH ...>
 
*
*
*
 
...ROWSPAN
*
*
*
 
...COLSPAN
*
*
*
 
...ALIGN
*
*
*
 
...VALIGN
*
*
*
 
...WIDTH
*
*
 
 
...HEIGHT
*
 
 
 
...NOWRAP
*
*
 
 
...BGCOLOR
*
 
 
 
...BORDERCOLOR
*
 
 
 
...BORDERCOLORLIGHT
*
 
 
 
...BORDERCOLORDARK
*
 
 
 
...BACKGROUND
*
 
 
<THEAD>
 
*
 
 
<TITLE>
 
*
*
*
<TR ...>
 
*
*
*
 
...ALIGN
*
*
*
 
...VALIGN
*
*
*
 
...BGCOLOR
*
 
 
 
...BORDERCOLOR
*
 
 
 
...BORDERCOLORLIGHT
*
 
 
 
...BORDERCOLORDARK
*
 
 
<TT>
 
*
*
*
<U>
 
*
 
*
<UL>
 
*
*
*
<VAR>
 
*
*
*
<WBR>
 
*
*
 
<XMP>
 
*
*
*
 
 
(will translate special characters)