[csswg-drafts] [css-fonts-4] access to named instances

gferreira has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [css-fonts-4] access to named instances ==
Reading the overview 
[here](https://litherum.blogspot.com.br/2016/09/variable-fonts-in-css-draft.html),
 I miss a way to access pre-defined instances by name. While it's 
great to be able to choose a value for each parameter numerically, in 
most common cases it will be easier for font users to choose one among
 several named instances provided by the type designer.

Here’s an example to illustrate what I mean:

```
10. Use named, pre-defined variation instances contained in the font

@font-face {
  font-family: "MyVariableFamily";
  src: url("MyVariableFamily.otf");
}

<div style="font-family: MyVariableFamily; font-name: 
'SemiBold'>hamburgefonstiv</div>
<div style="font-family: MyVariableFamily; font-name: 'Light 
Condensed';">hamburgefonstiv</div>
<div style="font-family: MyVariableFamily; font-name: 'Black Extended 
Rounded'>hamburgefonstiv</div>

```
note: probably related to 
[this](https://github.com/w3c/csswg-drafts/issues/518).


Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/525 using your GitHub 
account