HTML Checking for Large Sites

Rocket Validator automatically checks your pages on the W3C Validator.

Table columns in range X…Y established by element “td” have no cells beginning in them.

A <table> contains an incoherent number of columns on one of its rows. Check the structure of the table to find the invalid row.

For example, in the following table, the first <tr> row defines that it’s 2 columns wide, but the second <tr> row tries to use 5 columns by means of a colspan attribute:

  <!-- This first row sets the table as 2 columns wide -->

  <!-- This second row tries to use 5 columns -->
    <td colspan="5">Wrong</td>

Learn more:

MDN: The table element HTML Spec: The table element

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