To alter your text size move your mouse pointer over the word "View" (in some web browsers you will need to select "Page" rather than "View") that is displayed at the top of the browser window and click the mouse button once. This will display a dropdown list of options.
Move the mouse pointer over the option labelled 'Text Size' and press the mouse button once. This will display another list of options.
Click on the required option for the text size wanted. The page will then refresh with your newly selected setting.