The following suggestions are good basic information for every woman who wants to look taller. From my experience, a clean line/cut, dark colored pair of pants (wide leg or sightly flared) with a crisp white or colorful blouse paired with a nice pair of heels (whether boots, pumps or wedges) helps to elongate the visual line of your silhouette. For me, I do not find cropped pants to aid in appearing taller, thinner, etc. It gives me quite the opposite effect.
Also, while this article is from a magazine, please note that you can achieve any of the below looks for way way less money than the items they chose to display.
Punctuate Properly
When wearing shorter pants, leave the waistband exposed and finish with classic heels that come down low on the foot.Pairing pale tones creates visual space, which is why this skirt-and-shoes combination works