When you drag the black box horizontally the number below should change to reflect the position. The step indicator should reflect the initialPosition option of 50.
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When you drag the black box horizontally the number below should change to reflect the position in 10 steps that "snap".
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When you click the setRange button the slider should continue to work properly with a range of 200-50.
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The knob should be in the middle of the slider
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