HTML: border not visible in <td> tag in firefox - html

Question

I have a simple table in HTML> I want each cell in the the table to have its own border. I defined a CSS property for it like:
td {
width: 350px;
height: 50px;
border:thick;
border-color: black;
border-radius: 5px;
}
Html:
< table border="0">
<tr><td>Row1</td></tr>
<tr><td>Row2</td></tr>
<tr><td>Row3</td></tr>
</table>
The border is visible in the "Dreamweaver Design Mode" but when the document runs in firefox, the border vanishes. Why is it happening?

Answer 1

Try this:-
Demo
See Ref
<table>
<tr><td>Row1</td></tr>
<tr><td>Row2</td></tr>
<tr><td>Row3</td></tr>
</table>
td{
width: 350px;
height: 50px;
border: thick solid black;
border-radius: 5px;
}

Answer 2

In situations like this, where you get deviation between browsers, I always recommend going directly to a validator!
http://validator.nu/
Gives me these errors when I put your code in (with the css in a style tag in the head):
Error: Bad character after <. Probable cause: Unescaped <. Try escaping it as <. At line 15, column 2 tyle>↩</head>↩< table border=" Error: Stray start tag tr. From line 16, column 5; to line 16, column 8
="0">↩ <tr><td>Ro Error: Stray start tag td. From line 16, column 9; to line 16, column 12
>↩ <tr><td>Row1</ Error: Stray end tag td. From line 16, column 17; to line 16, column 21 r><td>Row1</td></tr> Error: Stray end tag tr. From line 16, column 22; to line 16, column 26
>Row1</td></tr> ↩ Error: Stray start tag tr. From line 17, column 5; to line 17, column 8 /tr> ↩ <tr><td>Ro Error: Stray start tag td. From line 17, column 9; to line 17, column 12 ↩ <tr><td>Row2</ Error: Stray end tag td. From line 17, column 17; to line 17, column 21 r><td>Row2</td></tr> Error: Stray end tag tr. From line 17, column 22; to line 17, column 26
>Row2</td></tr> ↩ Error: Stray start tag tr. From line 18, column 5; to line 18, column 8 r> ↩ <tr><td>Ro Error: Stray start tag td. From line 18, column 9; to line 18, column 12 ↩ <tr><td>Row3</ Error: Stray end tag td. From line 18, column 17; to line 18, column 21 r><td>Row3</td></tr>↩ Error: Stray end tag tr. From line 18, column 22; to line 18, column 26
>Row3</td></tr>↩</tab Error: Stray end tag table. From line 19, column 1; to line 19, column 8 /td></tr>↩</table>
The most important being the firstish entry:
Error: Bad character after <. Probable cause: Unescaped <. Try escaping it as <. At line 15, column 2 tyle>↩</head>↩< table border=" Error: Stray start tag tr. From line 16, column 5; to line 16, column 8