How to Keep Table Headers Fixed While Scrolling the Table Body?

Fixing Table Headers with Scrolling Body

Maintaining fixed table headers while allowing the body to scroll is a common requirement in web development. To achieve this, employ the following approach:

1. Wrap Table Content in Two Nested Elements:

• Create an outer table element (e.g., #mainTable) to hold the entire table.
• Create an inner table element (e.g., #innerTable) to contain the table body that needs to scroll.

2. Set Outer Table Height:

• Apply a fixed height to the outer table using CSS (e.g., #mainTable { height: 500px; }).

3. Position Inner Table:

• Position the inner table absolutely within the outer table using CSS (e.g., #innerTable { position: absolute; top: 0; bottom: 0; width: 100%; }).

4. Fix Headers:

• Apply position: sticky; to the header rows of the inner table (e.g., #innerTable th { position: sticky; top: 0; }).

5. Enable Scrolling:

• Ensure the inner table's height exceeds the outer table's height, triggering vertical overflow.
• Enable scrolling on the inner table using CSS (e.g., #innerTable { overflow: auto; }).

Example:

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