As you drag, yellow alignment guides may appear when a table’s rows or columns align with rows or columns in another table on the canvas.
Note: If the content of cells doesn’t fit after resizing, you can adjust rows or columns so it does. See the task below to learn how.
Go to the Pages app
The entire row or column is resized. Selecting cells from more than one row or column, resizes all the rows or columns included in the selection.
Go to the Pages app in its top-left corner.
Select Format > Table > Distribute Rows Evenly or Distribute Columns Evenly (from the Format menu at the top of your screen).