Baseline shift = “To move a selected character up or down relative to the baseline/level of the surrounding text.“
Baseline shift is an essential typography fine tuning function. The most common use of it in PowerPoint is when a super-script or sub-script is applied to text. For example, here is my sample text:
After applying the super-script function, the number 1 is raised up higher than the text next to it – the baseline has been shifted.
– Troy @ TLC