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Introduction
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HTML Elements and structure
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HTML Headings and Paragraphs
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HTML Lists and Tables
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HTML Forms and Input Fields
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HTML Images and Media
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HTML Links and Anchors
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HTML Styles and Formatting
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HTML Semantic Elements
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HTML Attributes
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HTML JavaScript Integration
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HTML Document and Browser Support
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HTML5 New Elements and Attributes
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HTML Accessibility and Web Standards
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HTML Responsive Design and Mobile Devices.
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Introduction
CSS Page 1
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CSS Selectors and the Box Model
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CSS Layout and Display Properties
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CSS Text and Font Properties
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CSS Backgrounds and Borders
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CSS Colors and Transparency
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CSS Gradients and Shadows
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CSS Transformations and Animations
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CSS Flexbox and Grid Layout
CSS Page 30
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CSS Media Queries and Responsive Design
CSS Page 33
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CSS Transitions and Transforms
CSS Page 36
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CSS Preprocessors (Sass, Less, etc.)
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CSS Best Practices and Debugging Techniques.
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CSS Page 44
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HTML
- Question 74
Make a table row span multiple columns in HTML?
- Answer
make a table row span multiple columns in HTML by using the colspan
attribute. This attribute allows you to specify the number of columns that a particular table cell should span. To use colspan
, you should follow these steps:
Identify the table row where you want to span multiple columns.
Locate the cell where you want the span to start and add the
colspan
attribute to it.Set the value of the
colspan
attribute to the number of columns that the cell should span.
Here is an example HTML code that demonstrates the use of colspan
to span a row across three columns:
<table>
<tr>
<td colspan="3">This cell spans three columns</td>
</tr>
<tr>
<td>Column 1</td>
<td>Column 2</td>
<td>Column 3</td>
</tr>
</table>
In the above example, the first row contains only one cell that spans across three columns using the colspan="3"
attribute. The second row contains three cells, each in its respective column.
- Question 75
Wrap text in a table cell in HTML? If so, how?
- Answer
you can wrap text in a table cell in HTML. By default, the text in a table cell will stretch to fit the width of the cell, but you can use the white-space
property to control how the text is displayed.
To wrap text within a table cell, you can use the white-space
property with a value of normal
or pre-wrap
. Here’s an example:
<table>
<tr>
<td>This is a long sentence that will wrap within the table cell.</td>
</tr>
</table>
In both cases, the text will wrap within the table cell instead of stretching to fit the width of the cell.
- Question 76
How to add a horizontal line in a HTML table?
- Answer
Add a horizontal line in an HTML table using the <hr>
tag, which is a self-closing tag and creates a horizontal rule (line) across the page. Here is an example of how to add a horizontal line in an HTML table:
<table>
<tr>
<td>Cell 1</td>
<td>Cell 2</td>
</tr>
<tr>
<td colspan="2"><hr></td>
</tr>
<tr>
<td>Cell 3</td>
<td>Cell 4</td>
</tr>
</table>
In the above example, the <hr>
tag is placed within a table cell that spans both columns (using colspan="2"
) to create a horizontal line that spans the entire width of the table. The line is positioned in its own row to separate the content above and below it.
You can also use CSS to style the horizontal line, such as changing the color, thickness, and style. For example, you could use the following CSS to make the line thicker and change its color:
hr {
border: none;
border-top: 2px solid #ccc;
}
You can place this CSS in a <style>
tag within the head of the HTML document, or in an external CSS file.
- Question 77
What is the difference between using th and td elements in HTML tables?
- Answer
In HTML tables, <th>
and <td>
elements are used to represent table cells. However, they have different meanings and should be used for different types of data.
The <th>
element is used to represent header cells in a table. Header cells contain column or row headings that provide context and help to organize the data in the table. By default, header cells are bold and centered, and their content is displayed with a slightly larger font size. Here’s an example of using <th>
for header cells:
<table>
<tr>
<th>Product Name</th>
<th>Price</th>
</tr>
<tr>
<td>Widget</td>
<td>$10.00</td>
</tr>
<tr>
<td>Gadget</td>
<td>$15.00</td>
</tr>
</table>
In the above example, the <th>
element is used for the header cells “Product Name” and “Price”. These cells contain column headings that provide context for the data in the table.
The <td>
element is used to represent data cells in a table. Data cells contain the actual data that is being presented in the table. By default, data cells are left-aligned and their content is displayed with a regular font size. Here’s an example of using <td>
for data cells:
<table>
<tr>
<th>Product Name</th>
<th>Price</th>
</tr>
<tr>
<td>Widget</td>
<td>$10.00</td>
</tr>
<tr>
<td>Gadget</td>
<td>$15.00</td>
</tr>
</table>
In the above example, the <td>
element is used for the data cells “Widget” and “$10.00”, and “Gadget” and “$15.00”. These cells contain the actual data being presented in the table.
In summary, <th>
elements are used for header cells, while <td>
elements are used for data cells. The difference in appearance between <th>
and <td>
cells is subtle, but using the appropriate element for each type of cell can improve the accessibility and organization of the data in the table.
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Introduction
CSS Page 1
CSS Page 2
CSS Page 3
CSS Page 4
CSS Selectors and the Box Model
CSS Page 5
CSS Page 6
CSS Page 7
CSS Layout and Display Properties
CSS Page 8
CSS Page 9
CSS Page 10
CSS Page 11
CSS Text and Font Properties
CSS Page 12
CSS Page 13
CSS Page 14
CSS Page 15
CSS Backgrounds and Borders
CSS Page 16
CSS Page 17
CSS Page 18
CSS Page 19
CSS Page 20
CSS Colors and Transparency
CSS Page 21
CSS Page 22
CSS Page 23
CSS Page 24
CSS Gradients and Shadows
CSS Page 25
CSS Page 26
CSS Transformations and Animations
CSS Page 27
CSS Page 28
CSS Page 29
CSS Flexbox and Grid Layout
CSS Page 30
CSS Page 31
CSS Page 32
CSS Media Queries and Responsive Design
CSS Page 33
CSS Page 34
CSS Page 35
CSS Transitions and Transforms
CSS Page 36
CSS Page 37
CSS Page 38
CSS Preprocessors (Sass, Less, etc.)
CSS Page 39
CSS Page 40
CSS Page 41
CSS Best Practices and Debugging Techniques.
CSS Page 42
CSS Page 43
CSS Page 44