Has anyone figured out a way to use custom fonts in Marketing Cloud emails, where the font is specified only with Free Form content block level? 

There is a hacky solution provided for full HTML emails in [**this question**](https://salesforce.stackexchange.com/questions/190896/upload-custom-font-on-marketing-cloud), but this method doesn't seem to work or I'm doing something wrong. 

First encode font file on [**Base64Encode**](https://www.base64encode.org/) site.

Then create codesnippet with the code:

```
%%[
SET @customFont = "T1RUTwAMAMKAAAMAQENGRiDCu2zDikEAAgTCuAAAwoITR1BPUzA.."
]%%

```

Then add the `@fontface` to the block

```
@font-face {   
           font-family: CustomFont;   
           src: url(data:font/ttf;charset=utf-8,base64,%%=v(@customFont)=%%) format('truetype'); 
}

```

Then style the areas with simple

```
div {
     font-family: CustomFont;
}

```

However even just adding the `@font-face` to the Free Form will disappear after saving it. 

Anyone else have had any luck using custom fonts with emails HTML?