@import url(foo.css);
@import "foo.css" print;

#foo_mucu {color: red;}
.mucu {color: red;}

#foo{color:red}p{color:red}.foo{color:red}p.foo{color:red}

@media print {
  #foo{color:red}
  p{color:red}
  .foo{color:red}
  p.foo{color:red}
}
@media print { body { font-size: 10pt; } }

foo>bar>baz {color:red}
p + .foo > #bar {color:red}
foo, #bar, .baz, ::before, .foo:before, foo + p[type="kk"] {color:red}

:before {color: red}
::before {color: red}
.foo::before {color: red}
#foo::before {color: red}
foo::before {color: red}