Macro contained_style_seq 

macro_rules! contained_style_seq {
    ($a:ident, $b:expr) => { ... };
}

macro to create a public function of CSS rules with a slice at current file scope,

respo::contained_style_seq!(the_name,
  &[
    (Some("@container".to_string()), "&", respo::css::respo_style())
  ]
);

gets a function like:

pub fn the_name() -> String