Check this page to know how to use the fonts after you have downloaded the filed :)
Under Windows 8/7/Vista
Select the font files (.ttf, .otf or .fon) then Right-click > Install
Under any version of Windows
Place the font files (.ttf, .otf or .fon) into the Fonts folder, usually C:\Windows\Fonts or C:\WINNT\Fonts
(can be reached as well by the Start Menu > Control Panel > Appearance and Themes > Fonts).
Note that with the internal unzip tool of Windows (unlike Winzip), you cannot install a font by a simple drag and drop of the .ttf from the zip window to the Fonts window. You must first drag and drop it anywhere (for example on the desktop) then into the Fonts folder.
You can also go through: File > Install a new font… in the Fonts folder menu then browse the fonts, instead of drag and drop the fonts into the window. Although this method is laborious, it would seem that it functions better in some cases.
Under Mac OS X 10.3 or above (including the FontBook)
Double-click the font file > “Install font” button at the bottom of the preview.
Under any version of Mac OS X:
Put the files into /Library/Fonts (for all users)
or into /Users/Your_username/Library/Fonts (for you only).
Under Mac OS 9 or earlier:
The old Mac fonts are not supported anymore at dafont. First, you have to convert the font files (.ttf or .otf) you have downloaded.
Then drag the fonts suitcases into the System folder. The system will propose you to add them to the Fonts folder.