nex3/sass — Issue #288: Unused placeholder selector still outputs empty `@media` block
Author: hail2u
Created: 2012-02-22 17:08:55+00:00
State: open

Unused placeholder selector should not be rendered to CSS.

Input:

```scss
%placeholder {
@media screen {
outline: 1px solid #f0f;
}
}

.foo {
margin: 1em;
}
```

Output:

```css
@media screen { }

.foo {
margin: 1em; }
```

Tested on Sass 3.2.0.alpha.76 (Bleeding Edge) on ruby 1.9.3p0 (2011-10-30) [i386-mingw32].