In PowerPoint, scrolling text is sometimes produced because the text content is displayed more often. The specific production methods are as follows: View-toolbar-control box, open the Control Toolbox, click the text box option, insert the text box control, and then hold down the left mouse button in the slide editing area to drag out a text box and adjust its position and size according to the layout. Next, right-click on the text box, select Properties on the shortcut menu, pop the Text Box property window, and set some properties for the text box in the Properties window.
Set right click on the "text box", select the "Text Box object" in the "edit" command, then you can enter the text, text editing, in the text box outside the click of any place, you can exit the editing state. A text box that lets the text in the box move along with the scroll bar is done.