ERB interpolation within `<style>` tag doesn't work

**ERB Input:**
```erb
<style type="text/css">
<%= Rouge::Themes::Monokai.render(scope: 'pre') %>
</style>
```

**Output:**
```ruby
style(type: "text/css") do
  "<erb loud> Rouge::Themes::Monokai.render(scope: 'pre') </erb>"
end
```

**Expected output:**
```ruby
style(type: "text/css") do
  Rouge::Themes::Monokai.render(scope: 'pre')
end
```
