On a desktop or laptop:
You can increase and decrease the size of the fonts in your browser by holding down the Ctrl key and moving the mouse wheel up or down. Alternatively, you can press down and hold the Ctrl key and press either the + (plus) or – (minus) keys on the keyboard to increase and decrease the font.
All browsers also support pressing the Ctrl key and 0 (zero) to reset the font back to the default font size.
For more information on how to do this on your computer see: http://www.w3.org/WAI/changedesign 0r http://www.wikihow.com/Change-the-Font-Size-in-a-Browser.
For Mac systems:
Using Command + or Command – will increase or decrease the font size.
On smart devices:
Most smart devices offer the ability to modify the system font and size. If for any reason your system does not feature this type of customization, there are a number of workarounds that will allow you to change the font settings and enhance readability on your device.
You can increase or decrease the size of the text within the device’s default Web browser:
- Launch your Web browser.
- Press the Menu button and then tap More.
- Tap Settings and then Set Text Size.
- Choose your preferred setting from the options available. The “tiny” setting will make the font extremely small whereas “large” will enlarge it one size above the default.
- Hit the Back button until you have exited the browser settings.
- Verify that you like the new text size by viewing a web page, and repeat your font size modifications if necessary.
The web-based practice examinations are designed to be responsive, so whatever size you set the fonts to, the text will wrap around and adjust to ensure that all of it can be seen on the screen.
For more information you can read this article: http://seniorplanet.org/how-can-i-increase-the-text-size-on-my-tablet-or-smartphone/