HTML Table Header Cell

Introduction

In HTML, the <th> tag is used to define one cell as a header of a group of cells. There are two types of HTML table cells: header cell and standard cell. The header cell is used as a header for the group of cells and the standard cells contain data for a table.

This step-by-step lab will guide you through how to create a header cell in HTML table using the <th> tag with brief explanations and code snippets.

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Skills Graph

Creating a Basic HTML Table

Firstly, we need to create a table using HTML.

To create a table, you should use the <table> tag, with each row represented by the <tr> tag and each cell represented by the <td> tag.

For example, the following code will create a simple HTML table with two rows and two columns:

<table>
  <tr>
    <td>Row 1, Column 1</td>
    <td>Row 1, Column 2</td>
  </tr>
  <tr>
    <td>Row 2, Column 1</td>
    <td>Row 2, Column 2</td>
  </tr>
</table>

Creating a Header Cell

To create a header cell, we must replace the <td> tag with the <th> tag in the table row where we want to add a header cell.

<table>
  <tr>
    <th>Header 1</th>
    <th>Header 2</th>
  </tr>
  <tr>
    <td>Row 1, Column 1</td>
    <td>Row 1, Column 2</td>
  </tr>
  <tr>
    <td>Row 2, Column 1</td>
    <td>Row 2, Column 2</td>
  </tr>
</table>

Adding Attributes to <th> Tag

The <th> tag supports various attributes to help format and structure the header cell.

• Abbr: Used to define the short abbreviation for the content of the cell.
• Colspan: Specifies the number of columns to span the cell.
• Rowspan:Specifies the number of rows to span.
• Scope: Specifies the cells that the header tag relates to.
• Header: Used to specify one or more header cells related to a cell.

For example, the following code will create a header cell with the "abbr" and "colspan" attributes:

<table>
  <tr>
    <th abbr="Header 1" colspan="2">Header 1 &amp; Header 2</th>
  </tr>
  <tr>
    <td>Row 1, Column 1</td>
    <td>Row 1, Column 2</td>
  </tr>
  <tr>
    <td>Row 2, Column 1</td>
    <td>Row 2, Column 2</td>
  </tr>
</table>

Summary

In this step-by-step lab, you have learned how to create a header cell in HTML table using the <th> tag. HTML table headers are significant for organizing data in a structured manner. Using the th tag, you can create a header cell and manage its formatting and attributes.