Test your font online. You can input the text or even HTML in the input box. Just move your mouse over the font types. You will see the changes of font styles. If you click the font name, the CSS will be recorded in the CSS tab. Test here!
How many fonts have been used or tested? Not many compared over 100 font tpyes installed in your computer. Now let's look through in minutes. Note some fonts listed here may not be installed in your computer. There will be no change if the font is not installed. Different browsers will display certain fonts differently.