2. The following code begins a comment in what type of file?
/*

That's correct. Well done!

The correct answer:
CSS

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3. The following code begins a CSS comment. What code ends it?
/*

That's correct. Well done!

The correct code:
*/

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4. The following code begins an HTML comment. What code ends it?
<!--

That's correct. Well done!

The correct code:
-->

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5. Drag-and-drop: Holding down the left mouse button, drag the pieces of code onto the screen to code an HTML comment.

6. Click in the box and type the next character. I'll autocomplete. Don't type spaces or carriage returns. When the exercise is complete, I'll turn the exercise number green.

Code an HTML comment that says gallery

7. Fail-safe coding. If you type the wrong character, I'll cancel the keystroke. Type spaces. When the exercise is complete, I'll turn the exercise number green.

Code a CSS comment that says text styling.

8. What is the opening CSS comment tag?

That's correct. Well done!

The correct code:
/*

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9. What is the opening HTML comment tag?

That's correct. Well done!

The correct code:
<!--

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10. What is the closing HTML comment tag?

That's correct. Well done!

The correct code:
-->

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11. Code a class of paragraph that doubles the "normal" font size. Start with a comment, on its own separate line. Make up the comment and the class name.

That's correct. Well done!

Example:
/* For emphasis */
p.big {
  font-size: 2em;
}

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12. Code a paragraph in HTML. On the line above it code a comment. Make up the comment text and paragraph text.

That's correct. Well done!

Example:
<!-- Greeting -->
<p>Hello World!</p>

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The next several exercises are timed. If you type slowly or dislike time pressure, feel free to increase the allotted time.

13. Time goal: 20 seconds. Code a CSS comment that says text styling.

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The correct code:
/* text styling */

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14. Time goal: 10 seconds. What is the opening CSS comment tag?

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The correct code:
/*

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15. Time goal: 10 seconds. What is the opening HTML comment tag?

Press Tab or click button to check answer.

The correct code:
<!--

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16. Time goal: 10 seconds. What is the closing HTML comment tag?

Press Tab or click button to check answer.

The correct code:
-->

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17. Time goal: 50 seconds. Code a class of paragraph that doubles the "normal" font size. Start with a comment, on its own separate line. Make up the comment and the class name.

Press Tab or click button to check answer.

Example:
/* For emphasis */
p.big {
  font-size: 2em;
}

Press Tab or click button to advance to next exercise.

Press Tab or click button to advance to next exercise.

18. Time goal: 45 seconds. Code a paragraph in HTML. On the line above it code a comment. Make up the comment text and paragraph text.

Press Tab or click button to check answer.

Example:
<!-- Greeting -->
<p>Hello World!</p>

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Press Tab or click button to advance to next exercise.

19. Access this live coding exercise at JS Fiddle. When you've completed the exercise, close the JS Fiddle window, and you'll be returned to this page. (If JS Fiddle displays a warning message saying that your changes will be reset, click Leave this Page.)

Click button to advance.

20. Access this live coding exercise at JS Fiddle. When you've completed the exercise, close the JS Fiddle window, and you'll be returned to this page. (If JS Fiddle displays a warning message saying that your changes will be reset, click Leave this Page.)

Click button to advance.