Element Microsoft 3.0 Microsoft 4.0 Netscape 3.0 Netscape 4.0 HTML 2.0 HTML 3.2 HTML 4.0 WebTV 1.2
IMG X X X X X X X X

Attribute Value Microsoft 3.0 Microsoft 4.0 Netscape 3.0 Netscape 4.0 HTML 2.0 HTML 3.2 HTML 4.0 WebTV 1.2
ALIGN ABSBOTTOM   X X X        
ABSMIDDLE   X X X        
BASELINE   X X X        
BOTTOM X X X X X X X X
CENTER X             X
LEFT X X X X   X X X
MIDDLE X X X X X X X X
RIGHT X X X X   X X X
TEXTTOP   X X X        
TOP X X X X X X X X
ALT <string> X X X X X X X X
BORDER <number> X X X X   X X X
CLASS <string> X X   X     X  
CONTROLS X              
DATAFLD <string>   X            
Attribute Value Microsoft 3.0 Microsoft 4.0 Netscape 3.0 Netscape 4.0 HTML 2.0 HTML 3.2 HTML 4.0 WebTV 1.2
DATASRC <string>   X            
DYNSRC <url> X X            
HEIGHT <number> X X X X   X X X
HSPACE <number> X X X X   X X X
ID <id> X X   X     X X
ISMAP X X X X X X X X
LANG <string>   X   X        
LANGUAGE JAVASCRIPT   X            
JSCRIPT   X            
VBS   X            
VBSCRIPT   X            
LONGDESC <url>             X  
LOOP X X            
<number> X X            
LOWSRC <url>   X X X        
NAME <string>   X X X       X
Attribute Value Microsoft 3.0 Microsoft 4.0 Netscape 3.0 Netscape 4.0 HTML 2.0 HTML 3.2 HTML 4.0 WebTV 1.2
onAbort <script>   X X X       X
onAfterUpdate <script>   X            
onBeforeUpdate <script>   X            
onBlur <script>   X            
onClick <script>   X         X  
onDblClick <script>   X         X  
onDragStart <script>   X            
onError <script>   X X X       X
onFocus <script>   X            
onHelp <script>   X            
onKeyDown <script>   X         X  
onKeyPress <script>   X         X  
onKeyUp <script>   X         X  
onLoad <script>   X X X       X
onMouseDown <script>   X         X  
onMouseMove <script>   X         X  
Attribute Value Microsoft 3.0 Microsoft 4.0 Netscape 3.0 Netscape 4.0 HTML 2.0 HTML 3.2 HTML 4.0 WebTV 1.2
onMouseOut <script>   X         X  
onMouseOver <script>   X         X  
onMouseUp <script>   X         X  
onResize <script>   X            
onRowEnter <script>   X            
onRowExit <script>   X            
onSelectStart <script>   X            
RELOAD <number>               X
SELECTED               X
SRC <url> X X X X X X X X
START FILEOPEN X             X
MOUSEOVER X             X
STYLE <styleSheet> X X   X     X  
TITLE <string> X X         X  
TRANSPARENCY <number>               X
USEMAP <url> X X X X   X X X
Attribute Value Microsoft 3.0 Microsoft 4.0 Netscape 3.0 Netscape 4.0 HTML 2.0 HTML 3.2 HTML 4.0 WebTV 1.2
VSPACE <number> X X X X   X X X
WIDTH <number> X X X X   X X X