diff --git a/src/main/groovy/org/groocss/Comment.groovy b/src/main/groovy/org/groocss/Comment.groovy
index 0fee2fd..12c3947 100644
--- a/src/main/groovy/org/groocss/Comment.groovy
+++ b/src/main/groovy/org/groocss/Comment.groovy
@@ -5,7 +5,7 @@ import groovy.transform.EqualsAndHashCode
 import groovy.transform.TupleConstructor
 
 /**
- * Created by adavis on 8/9/17.
+ * Represents a comment to include in output. Created by adavis on 8/9/17.
  */
 @TupleConstructor
 @EqualsAndHashCode
@@ -13,5 +13,5 @@ import groovy.transform.TupleConstructor
 class Comment {
     String comment
     boolean isEmpty() { comment == '' }
-    String toString() { "/**$comment*/" }
+    String toString() { "/* $comment */" }
 }
diff --git a/src/main/groovy/org/groocss/GrooCSS.groovy b/src/main/groovy/org/groocss/GrooCSS.groovy
index 9b1c0fc..200d0cf 100644
--- a/src/main/groovy/org/groocss/GrooCSS.groovy
+++ b/src/main/groovy/org/groocss/GrooCSS.groovy
@@ -1744,4 +1744,38 @@ class GrooCSS extends Script {
         r
     }
 
+    /** Adds a comment to be included in output. */
+    Comment comment(String comment) {
+        def com = new Comment(comment)
+        currentCss << com
+        com
+    }
+
+    /** Imports given Groocss file at filename. */
+    MediaCSS importFile(Map params = [:], String filename) { importReader params, new File(filename).newReader() }
+
+    /** Imports given Groocss file. */
+    MediaCSS importFile(Map params = [:], File file) { importReader params, file.newReader() }
+
+    /** Imports given Groocss. */
+    MediaCSS importString(Map params = [:], String groocss) { importReader(params, new StringReader(groocss)) }
+
+    /** Imports given Groocss input using given Reader. */
+    MediaCSS importReader(Map params = [:], Reader reader) {
+        def shell = makeShell()
+        def script = shell.parse(reader)
+        def binding = new Binding()
+        params.each { binding.setVariable(it.key, it.value) }
+        script.binding = binding
+        script.invokeMethod('setConfig', css.config)
+        script.run()
+        MediaCSS other = (MediaCSS) script.getProperty('css')
+        currentCss.add other
+    }
+
+    /** Imports given Groocss file using given InputStream. */
+    MediaCSS importStream(Map params = [:], InputStream stream) {
+        importReader params, new InputStreamReader(stream)
+    }
+
 }
diff --git a/src/main/groovy/org/groocss/MediaCSS.groovy b/src/main/groovy/org/groocss/MediaCSS.groovy
index 28b30e8..7121cfa 100644
--- a/src/main/groovy/org/groocss/MediaCSS.groovy
+++ b/src/main/groovy/org/groocss/MediaCSS.groovy
@@ -60,11 +60,13 @@ class MediaCSS {
         else writer.append (groups.findAll{ !it.isEmpty() }.join(sn))
         if (kfs) writer.append((groups || fonts) ? sn : '').append (kfs.join(sn))
 
-        if (otherCss)
+        if (otherCss) {
+            if (groups || fonts || kfs) writer.append(sn)
             otherCss.each {
                 it.writeTo(writer)
                 writer.append(sn)
             }
+        }
     }
 
     /** Creates a new StyleGroup element and runs given closure on it. */
diff --git a/src/test/groovy/org/groocss/CommentSpec.groovy b/src/test/groovy/org/groocss/CommentSpec.groovy
new file mode 100644
index 0000000..871e0ae
--- /dev/null
+++ b/src/test/groovy/org/groocss/CommentSpec.groovy
@@ -0,0 +1,34 @@
+package org.groocss
+
+import spock.lang.Specification
+
+/**
+ * Created by adavis on 8/10/17.
+ */
+class CommentSpec extends Specification {
+
+    def "comment should include comment in output"() {
+        given:
+        def css = GrooCSS.process {
+            comment 'I am Groocss!'
+        }
+        expect:
+        '/* I am Groocss! */' == "$css"
+    }
+
+    def "comment should print in order"() {
+        given:
+        def css = GrooCSS.process {
+            comment 'comment1'
+            a { fontSize 18.px }
+            comment 'comment2'
+            aside { fontSize 15.px }
+        }
+        expect:
+        "$css" == '''
+        /* comment1 */
+        a{font-size: 18px;}
+        /* comment2 */
+        aside{font-size: 15px;}'''.stripIndent().trim()
+    }
+}
diff --git a/src/test/groovy/org/groocss/GroocssSpec.groovy b/src/test/groovy/org/groocss/GroocssSpec.groovy
index 3f15d70..5faeef4 100644
--- a/src/test/groovy/org/groocss/GroocssSpec.groovy
+++ b/src/test/groovy/org/groocss/GroocssSpec.groovy
@@ -613,7 +613,7 @@ class GroocssSpec extends Specification {
             }
         }
         then:
-        "$css" == 'form{font-size: 2em;}@media mobile {\nform{font-size: 2em;\n\tline-height: 1.1em;}\n}\n'
+        "$css" == 'form{font-size: 2em;}\n@media mobile {\nform{font-size: 2em;\n\tline-height: 1.1em;}\n}\n'
     }
 
     def "should use minus to remove styles"() {
@@ -628,7 +628,7 @@ class GroocssSpec extends Specification {
             }
         }
         then:
-        "$css" == 'form{font-size: 2em;}@media mobile {\nform{line-height: 1.1em;}\n}\n'
+        "$css" == 'form{font-size: 2em;}\n@media mobile {\nform{line-height: 1.1em;}\n}\n'
     }
 
     def "removing empty styles has no effect"() {
@@ -643,7 +643,7 @@ class GroocssSpec extends Specification {
             }
         }
         then:
-        "$css" == 'form{font-size: 2em;}@media mobile {\nform{font-size: 2em;\n\tline-height: 1.1em;}\n}\n'
+        "$css" == 'form{font-size: 2em;}\n@media mobile {\nform{font-size: 2em;\n\tline-height: 1.1em;}\n}\n'
     }
 
     def "removing non-matching styles has no effect"() {
@@ -658,7 +658,7 @@ class GroocssSpec extends Specification {
             }
         }
         then:
-        "$css" == 'form{font-size: 2em;}@media mobile {\nform{font-size: 2em;\n\tline-height: 1.1em;}\n}\n'
+        "$css" == 'form{font-size: 2em;}\n@media mobile {\nform{font-size: 2em;\n\tline-height: 1.1em;}\n}\n'
     }
 
     def "styles math is idempotent"() {
@@ -673,7 +673,7 @@ class GroocssSpec extends Specification {
             }
         }
         then:
-        "$css" == 'form{font-size: 2em;}' +
+        "$css" == 'form{font-size: 2em;}\n' +
                 '@media mobile {\nform{line-height: 1.1em;}\n}\n' +
                 '@media only screen and (max-width: 960px) {\n' +
                 'form{font-size: 2em;\n\tline-height: 12pt;}\n' +
diff --git a/src/test/groovy/org/groocss/ImportSpec.groovy b/src/test/groovy/org/groocss/ImportSpec.groovy
new file mode 100644
index 0000000..d03d048
--- /dev/null
+++ b/src/test/groovy/org/groocss/ImportSpec.groovy
@@ -0,0 +1,70 @@
+package org.groocss
+
+import spock.lang.Shared
+import spock.lang.Specification
+import spock.lang.Unroll
+
+/**
+ * Created by adavis on 8/10/17.
+ */
+class ImportSpec extends Specification {
+    
+    @Shared
+    File otherCss
+    
+    def setup() {
+        otherCss = new File(File.createTempDir(),"other.css")
+    }
+
+    @Unroll
+    def "import should just import it: #name"() {
+        given:
+        otherCss.text = "a {color blue}"
+        expect:
+        def css = GrooCSS.process closure
+        'a{color: Blue;}' == "$css".trim()
+        where:
+        name            | closure
+        'File name'     | { importFile otherCss.absoluteFile.toString() }
+        'File'          | { importFile otherCss.absoluteFile }
+        'String'        | { importString otherCss.text }
+        'InputStream'   | { importStream otherCss.newInputStream() }
+    }
+
+    def "import should be put last"() {
+        given:
+        otherCss.text = "a {color blue}"
+        expect:
+        def css = GrooCSS.process {
+            importFile otherCss.absoluteFile
+            header { fontSize '15pt' }
+        }
+        'header{font-size: 15pt;}\na{color: Blue;}' == "$css".trim()
+    }
+
+    def "import should allow parameters"() {
+        given:
+        otherCss.text = "a {color linkColor}"
+        expect:
+        def css = GrooCSS.process {
+            importFile otherCss.absoluteFile, linkColor: '#456789'
+        }
+        'a{color: #456789;}' == "$css".trim()
+    }
+
+    @Unroll
+    def "import should allow #type parameter"() {
+        given:
+        otherCss.text = "a {color linkColor}"
+        expect:
+        def css = GrooCSS.process {
+            importFile otherCss.absoluteFile, linkColor: value, param2: 123
+        }
+        'a{color: #123456;}' == "$css".trim()
+        where:
+        type        | value
+        'String'    | '#123456'
+        'Integer'   | 0x123456
+        'Color'     | new Color(0x123456)
+    }
+}
diff --git a/src/test/groovy/org/groocss/RawSpec.groovy b/src/test/groovy/org/groocss/RawSpec.groovy
index 4948a6e..c3b1318 100644
--- a/src/test/groovy/org/groocss/RawSpec.groovy
+++ b/src/test/groovy/org/groocss/RawSpec.groovy
@@ -15,4 +15,14 @@ class RawSpec extends Specification {
         expect:
         '::webkit-blaw { dostuff }' == "$css"
     }
+
+    def "raw should print in order"() {
+        given:
+        def css = GrooCSS.process {
+            raw 'raw1'
+            raw 'raw2'
+        }
+        expect:
+        'raw1\nraw2' == "$css"
+    }
 }