CSS Properties: How to collapse table border into a single border?

Last update on February 17 2024 12:46:55 (UTC/GMT +8 hours)

Solution:

HTML Code:

<!DOCTYPE html><!-- Declaration of HTML5 document type -->
<html>
<head>
<title>How to collapse table border into a single border</title><!-- Title of the HTML document -->
<style>/* CSS style start*/
table#mytable {
border-collapse:collapse; /* Sets the border-collapse property to collapse for the table with id "mytable" */
}
table, td, th {
border: 1px solid red; /* Sets a red solid border with 1px width for table, td, and th elements */
}
</style>
</head>
<body>
<table id="mytable"><!-- Start of the table with id "mytable" -->
<tr><!-- Start of the table row -->
<th>First Name</th><!-- Table header cell containing "First Name" -->
<th>Last Name </th><!-- Table header cell containing "Last Name" -->
</tr><!-- End of the table row -->
<tr><!-- Start of another table row -->
<td>Jack</td><!-- Table data cell containing "Jack" -->
<td>Bell</td><!-- Table data cell containing "Bell" -->
</tr><!-- End of the table row -->
<tr><!-- Start of another table row -->
<td>Peter</td><!-- Table data cell containing "Peter" -->
<td>Jhon</td><!-- Table data cell containing "Jhon" -->
</tr><!-- End of the table row -->
</table><!-- End of the table with id "mytable" -->
</body>
</html>

Explanation:

This HTML document creates a table with collapsed borders.
The CSS style block defines the style for the table with id "mytable" and its cells (td and th).
border-collapse:collapse; specifies that table borders should be collapsed into a single border.
border: 1px solid red; sets a red solid border with 1px width for the table, td, and th elements.
Inside the body, a table is defined with id "mytable" and three rows (tr) and two columns (th and td).
Table header cells (th) contain "First Name" and "Last Name" respectively.
Table data cells (td) contain names like "Jack", "Bell", "Peter", and "Jhon".

Live Demo:

See the Pen border-collapse-collapse-answer by w3resource (@w3resource) on CodePen.

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