diff --git a/src/language-css/parser-postcss.js b/src/language-css/parser-postcss.js
index df8d250a..570fc1f6 100644
--- a/src/language-css/parser-postcss.js
+++ b/src/language-css/parser-postcss.js
@@ -314,7 +314,7 @@ function parseNestedCSS(node) {
         return node;
       }
 
-      if (node.name === "extend") {
+      if (node.name === "extend" || node.name === "nest") {
         node.selector = parseSelector(node.params);
         delete node.params;
 
diff --git a/tests/css_modules/__snapshots__/jsfmt.spec.js.snap b/tests/css_modules/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 00000000..8f399af5
--- /dev/null
+++ b/tests/css_modules/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,16 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`modules.css 1`] = `
+.title {
+  @nest :global(h1)& {
+    background: red;
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.title {
+  @nest :global(h1)& {
+    background: red;
+  }
+}
+
+`;
diff --git a/tests/css_modules/jsfmt.spec.js b/tests/css_modules/jsfmt.spec.js
new file mode 100644
index 00000000..7d3726c8
--- /dev/null
+++ b/tests/css_modules/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, ["css"]);
diff --git a/tests/css_modules/modules.css b/tests/css_modules/modules.css
new file mode 100644
index 00000000..d8152fcc
--- /dev/null
+++ b/tests/css_modules/modules.css
@@ -0,0 +1,5 @@
+.title {
+  @nest :global(h1)& {
+    background: red;
+  }
+}
diff --git a/tests/css_postcss_plugins/__snapshots__/jsfmt.spec.js.snap b/tests/css_postcss_plugins/__snapshots__/jsfmt.spec.js.snap
index c6952830..2a376b4a 100644
--- a/tests/css_postcss_plugins/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/css_postcss_plugins/__snapshots__/jsfmt.spec.js.snap
@@ -132,3 +132,402 @@ exports[`postcss-nested-props.css 1`] = `
 }
 
 `;
+
+exports[`postcss-nesting.css 1`] = `
+a {
+  order: 1;
+  @nest b & {
+    order: 2;
+  }
+  @nest c & {
+    order: 3;
+  }
+  @nest d & {
+    order: 4;
+  }
+  @nest e & {
+    order: 5;
+  }
+}
+a {
+  order: 1;
+  @nest & b {
+    order: 2;
+  }
+  @nest & c {
+    order: 3;
+  }
+  @nest & d {
+    order: 4;
+  }
+  @nest & e {
+    order: 5;
+  }
+}
+
+.rule-1 {
+  order: 1;
+  @media screen, print {
+    order: 2;
+    &.rule-2 {
+      order: 3;
+      @media (max-width: 30em) {
+        order: 4;
+        @nest .rule-prefix & {
+          order: 5;
+        }
+        order: 6;
+      }
+      order: 7;
+    }
+    order: 8;
+  }
+  order: 9;
+}
+
+a, b {
+  order: 1;
+  & c, & d {
+    order: 2;
+    & e, & f {
+      order: 3;
+    }
+    order: 4;
+  }
+  order: 5;
+}
+a, b {
+  order: 1;
+  @nest & c, & d {
+    order: 2;
+    @nest & e, & f {
+      order: 3;
+    }
+    order: 4;
+  }
+  order: 5;
+}
+
+a {
+  & b {
+    & c {
+      order: 1;
+    }
+  }
+}
+d {
+  order: 2;
+  & e {
+    order: 3;
+  }
+}
+f {
+  & g {
+    order: 4;
+  }
+  order: 5;
+}
+a {
+  @nest & b {
+    @nest & c {
+      order: 1;
+    }
+  }
+}
+d {
+  order: 2;
+  @nest & e {
+    order: 3;
+  }
+}
+f {
+  @nest & g {
+    order: 4;
+  }
+  order: 5;
+}
+
+a, b {
+  order: 1;
+  c, d {
+    order: 2;
+  }
+}
+& e {
+  order: 3;
+}
+f {
+  & g & {
+    order: 4;
+  }
+  &h {
+    order: 5;
+  }
+}
+a, b {
+  order: 1;
+  @nest c, d {
+    order: 2;
+  }
+}
+@nest & e {
+  order: 3;
+}
+f {
+  @nest & g & {
+    order: 4;
+  }
+  @nest &h {
+    order: 5;
+  }
+}
+
+a {
+  order: 1;
+  @media (min-width: 100px) {
+    order: 2;
+    @media (max-width: 200px) {
+      order: 3;
+    }
+    & b {
+      @media (max-width: 200px) {
+        order: 4;
+      }
+    }
+  }
+  @media screen, print and speech {
+    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
+      order: 5;
+      & c {
+        order: 6;
+      }
+    }
+  }
+}
+a {
+  order: 1;
+  @media (min-width: 100px) {
+    order: 2;
+    @media (max-width: 200px) {
+      order: 3;
+    }
+    @nest & b {
+      @media (max-width: 200px) {
+        order: 4;
+      }
+    }
+  }
+  @media screen, print and speech {
+    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
+      order: 5;
+      @nest & c {
+        order: 6;
+      }
+    }
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+a {
+  order: 1;
+  @nest b & {
+    order: 2;
+  }
+  @nest c & {
+    order: 3;
+  }
+  @nest d & {
+    order: 4;
+  }
+  @nest e & {
+    order: 5;
+  }
+}
+a {
+  order: 1;
+  @nest & b {
+    order: 2;
+  }
+  @nest & c {
+    order: 3;
+  }
+  @nest & d {
+    order: 4;
+  }
+  @nest & e {
+    order: 5;
+  }
+}
+
+.rule-1 {
+  order: 1;
+  @media screen, print {
+    order: 2;
+    &.rule-2 {
+      order: 3;
+      @media (max-width: 30em) {
+        order: 4;
+        @nest .rule-prefix & {
+          order: 5;
+        }
+        order: 6;
+      }
+      order: 7;
+    }
+    order: 8;
+  }
+  order: 9;
+}
+
+a,
+b {
+  order: 1;
+  & c,
+  & d {
+    order: 2;
+    & e,
+    & f {
+      order: 3;
+    }
+    order: 4;
+  }
+  order: 5;
+}
+a,
+b {
+  order: 1;
+  @nest & c,
+    & d {
+    order: 2;
+    @nest & e,
+      & f {
+      order: 3;
+    }
+    order: 4;
+  }
+  order: 5;
+}
+
+a {
+  & b {
+    & c {
+      order: 1;
+    }
+  }
+}
+d {
+  order: 2;
+  & e {
+    order: 3;
+  }
+}
+f {
+  & g {
+    order: 4;
+  }
+  order: 5;
+}
+a {
+  @nest & b {
+    @nest & c {
+      order: 1;
+    }
+  }
+}
+d {
+  order: 2;
+  @nest & e {
+    order: 3;
+  }
+}
+f {
+  @nest & g {
+    order: 4;
+  }
+  order: 5;
+}
+
+a,
+b {
+  order: 1;
+  c,
+  d {
+    order: 2;
+  }
+}
+& e {
+  order: 3;
+}
+f {
+  & g & {
+    order: 4;
+  }
+  &h {
+    order: 5;
+  }
+}
+a,
+b {
+  order: 1;
+  @nest c,
+    d {
+    order: 2;
+  }
+}
+@nest & e {
+  order: 3;
+}
+f {
+  @nest & g & {
+    order: 4;
+  }
+  @nest &h {
+    order: 5;
+  }
+}
+
+a {
+  order: 1;
+  @media (min-width: 100px) {
+    order: 2;
+    @media (max-width: 200px) {
+      order: 3;
+    }
+    & b {
+      @media (max-width: 200px) {
+        order: 4;
+      }
+    }
+  }
+  @media screen, print and speech {
+    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
+      order: 5;
+      & c {
+        order: 6;
+      }
+    }
+  }
+}
+a {
+  order: 1;
+  @media (min-width: 100px) {
+    order: 2;
+    @media (max-width: 200px) {
+      order: 3;
+    }
+    @nest & b {
+      @media (max-width: 200px) {
+        order: 4;
+      }
+    }
+  }
+  @media screen, print and speech {
+    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
+      order: 5;
+      @nest & c {
+        order: 6;
+      }
+    }
+  }
+}
+
+`;
diff --git a/tests/css_postcss_plugins/postcss-nesting.css b/tests/css_postcss_plugins/postcss-nesting.css
new file mode 100644
index 00000000..f2c278d4
--- /dev/null
+++ b/tests/css_postcss_plugins/postcss-nesting.css
@@ -0,0 +1,192 @@
+a {
+  order: 1;
+  @nest b & {
+    order: 2;
+  }
+  @nest c & {
+    order: 3;
+  }
+  @nest d & {
+    order: 4;
+  }
+  @nest e & {
+    order: 5;
+  }
+}
+a {
+  order: 1;
+  @nest & b {
+    order: 2;
+  }
+  @nest & c {
+    order: 3;
+  }
+  @nest & d {
+    order: 4;
+  }
+  @nest & e {
+    order: 5;
+  }
+}
+
+.rule-1 {
+  order: 1;
+  @media screen, print {
+    order: 2;
+    &.rule-2 {
+      order: 3;
+      @media (max-width: 30em) {
+        order: 4;
+        @nest .rule-prefix & {
+          order: 5;
+        }
+        order: 6;
+      }
+      order: 7;
+    }
+    order: 8;
+  }
+  order: 9;
+}
+
+a, b {
+  order: 1;
+  & c, & d {
+    order: 2;
+    & e, & f {
+      order: 3;
+    }
+    order: 4;
+  }
+  order: 5;
+}
+a, b {
+  order: 1;
+  @nest & c, & d {
+    order: 2;
+    @nest & e, & f {
+      order: 3;
+    }
+    order: 4;
+  }
+  order: 5;
+}
+
+a {
+  & b {
+    & c {
+      order: 1;
+    }
+  }
+}
+d {
+  order: 2;
+  & e {
+    order: 3;
+  }
+}
+f {
+  & g {
+    order: 4;
+  }
+  order: 5;
+}
+a {
+  @nest & b {
+    @nest & c {
+      order: 1;
+    }
+  }
+}
+d {
+  order: 2;
+  @nest & e {
+    order: 3;
+  }
+}
+f {
+  @nest & g {
+    order: 4;
+  }
+  order: 5;
+}
+
+a, b {
+  order: 1;
+  c, d {
+    order: 2;
+  }
+}
+& e {
+  order: 3;
+}
+f {
+  & g & {
+    order: 4;
+  }
+  &h {
+    order: 5;
+  }
+}
+a, b {
+  order: 1;
+  @nest c, d {
+    order: 2;
+  }
+}
+@nest & e {
+  order: 3;
+}
+f {
+  @nest & g & {
+    order: 4;
+  }
+  @nest &h {
+    order: 5;
+  }
+}
+
+a {
+  order: 1;
+  @media (min-width: 100px) {
+    order: 2;
+    @media (max-width: 200px) {
+      order: 3;
+    }
+    & b {
+      @media (max-width: 200px) {
+        order: 4;
+      }
+    }
+  }
+  @media screen, print and speech {
+    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
+      order: 5;
+      & c {
+        order: 6;
+      }
+    }
+  }
+}
+a {
+  order: 1;
+  @media (min-width: 100px) {
+    order: 2;
+    @media (max-width: 200px) {
+      order: 3;
+    }
+    @nest & b {
+      @media (max-width: 200px) {
+        order: 4;
+      }
+    }
+  }
+  @media screen, print and speech {
+    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
+      order: 5;
+      @nest & c {
+        order: 6;
+      }
+    }
+  }
+}