Du har ikke <thead> og <tbody> tags.
Prøv med
<html>
<head>
<title>Doubling the Chocolate Chip Cookies Recipe</title>
</head>
<body>
<table border="2">
<thead>
<tr><th colspan="3">Doubling Chocolate Chip Cookies</th></tr>
</thead>
<tbody>
<tr><th>Ingredient</th><th>Single Batch</th><th>Double atch</th></tr>
<tr><td>butter</td><td>1 cup</td><td>2 cups</td></tr>
<tr><td>eggs</td><td>2</td><td>4</td></tr>
<tr><td>hot water</td><td>2 teaspoons</td><td>4 teaspoons</td></tr>
<tr><td>white sugar</td><td>1 cup</td><td>2 cups</td></tr>
</tbody>
</table>
</body>
</html>
The <thead> tag is used to group header content in an HTML table.
The <thead> element is used in conjunction with the <tbody> and <tfoot> elements to specify each part of a table (header, body, footer).
Browsers can use these elements to enable scrolling of the table body independently of the header and footer. Also, when printing a large table that spans multiple pages, these elements can enable the table header and footer to be printed at the top and bottom of each page.
The <thead> tag must be used in the following context: As a child of a <table> element, after any <caption>, and <colgroup> elements, and before any <tbody>, <tfoot>, and <tr> elements.
Indlæg senest redigeret d. 10.08.2012 09:07 af Bruger #3173