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HTML Table Size

HTML tables are a great way to organize and display data on a webpage. The size of an HTML table can be controlled using various attributes and CSS properties. Let’s break down how to manage table size with examples.

Basic Table Structure

Here’s a simple example of an HTML table:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HTML Table Example</title>
    <style>
        table {
            border-collapse: collapse; /* Ensures borders between cells are combined */
        }
        th, td {
            border: 1px solid black; /* Adds border to table cells */
            padding: 8px; /* Adds space inside cells */
            text-align: left; /* Aligns text to the left */
        }
        table {
            width: 80%; /* Sets the table width to 80% of its container */
            margin: auto; /* Centers the table horizontally */
        }
    </style>
</head>
<body>
    <table>
        <thead>
            <tr>
                <th>Header 1</th>
                <th>Header 2</th>
                <th>Header 3</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>Row 1, Cell 1</td>
                <td>Row 1, Cell 2</td>
                <td>Row 1, Cell 3</td>
            </tr>
            <tr>
                <td>Row 2, Cell 1</td>
                <td>Row 2, Cell 2</td>
                <td>Row 2, Cell 3</td>
            </tr>
        </tbody>
    </table>
</body>
</html>

Controlling Table Size

Using width Attribute: The width attribute can be applied directly to the <table> tag, but it's considered outdated. For example:
```
<table width="500">
    ...
</table>
```
This sets the table width to 500 pixels. Modern practice prefers using CSS for better control.

Using CSS:

Set Width:

table {
    width: 100%; /* Sets the table width to 100% of its container */
}

<table>
    ...
</table>

Set Maximum Width:

table {
    max-width: 600px; /* The table width will not exceed 600 pixels */
}

Set Fixed Width:

table {
    width: 400px; /* Fixed width of 400 pixels */
}

Column Widths: You can set the width of individual columns using <col> elements in combination with CSS:

<style>
    .col1 { width: 30%; }
    .col2 { width: 50%; }
    .col3 { width: 20%; }
</style>

<table>
    <colgroup>
        <col class="col1">
        <col class="col2">
        <col class="col3">
    </colgroup>
    ...
</table>

Responsive Tables: To ensure that tables adapt to different screen sizes, you can use media queries:

@media screen and (max-width: 600px) {
    table {
        width: 100%; /* Adjusts table width to 100% on smaller screens */
        font-size: 12px; /* Adjusts font size for readability */
    }
}

Example with Responsive Design

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Responsive Table Example</title>
    <style>
        table {
            width: 100%;
            border-collapse: collapse;
        }
        th, td {
            border: 1px solid black;
            padding: 8px;
            text-align: left;
        }
        @media screen and (max-width: 600px) {
            th, td {
                font-size: 12px;
            }
        }
    </style>
</head>
<body>
    <table>
        <thead>
            <tr>
                <th>Header 1</th>
                <th>Header 2</th>
                <th>Header 3</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>Row 1, Cell 1</td>
                <td>Row 1, Cell 2</td>
                <td>Row 1, Cell 3</td>
            </tr>
            <tr>
                <td>Row 2, Cell 1</td>
                <td>Row 2, Cell 2</td>
                <td>Row 2, Cell 3</td>
            </tr>
        </tbody>
    </table>
</body>
</html>

This example ensures that the table is responsive and adjusts the font size on smaller screens.

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