I have to use a web font that from another website and the URL of that is at the below.

```
<a href="http://fast.fonts.com/cssapi/b0549848-32a3-4c8e-a13e-810394960364.css">http://fast.fonts.com/cssapi/b0549848-32a3-4c8e-a13e-810394960364.css</a>

```

To add this web font I have used the following statement in my MasterPage's HTML file.

```
<link href="http://fast.fonts.com/cssapi/b0549848-32a3-4c8e-a13e-810394960364.css" type="text/css" rel="stylesheet" />

```

My MasterPage is a custom one. I tried the following statement but it didnot work because when I tried to save the MasterPages's HTML file an error occurs saying the file should have the .aspx extension.

```
<SharePoint:CssRegistration Name="<%$SPrl:~sitecollection/Style Library/MyCustomTheme/mycss.css%>" runat="server" After="corev15.css"/>

```

The problem I think the custom web font will be replaced by the default font in the default CSS file in the SharePoint Site.

So what can I do for to obstruct this problem? Please could someone help me solve this?

Thanks and regards,

Chiranthaka