You can resize the text container around block text to change the text flow. Resizing a text container does not otherwise change the appearance of the text.
To display the text container around block text so that you can resize it, click the text block once with the text pointer, or double-click the text block with the select pointer.
Dragging a container handle resizes the container. The text reflows to accommodate the new container size, but the text size and style attributes do not change.