DRAG DROP
An HTML page has a CANVAS element.
You need to draw a red rectangle on the CANVAS element dynamically. The rectangle should
resemble the following graphic.
How should you build the code segment? (To answer, drag the appropriate line of code to the
correct location. Each line of code may be used once, more than once, or not at all. You may need to
drag the split bar between panes or scroll to view content.)

Explanation:
Reference:
http://www.w3schools.com/html/html5_canvas.asp
What if we use “context.fillRect” before “context.fillStyle” ?
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The rectangle will be black
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