diff --git a/addons/rose/addon/components/rose/dropdown.js b/addons/rose/addon/components/rose/dropdown.js
index 07e9ba14b..4e6ffea81 100644
--- a/addons/rose/addon/components/rose/dropdown.js
+++ b/addons/rose/addon/components/rose/dropdown.js
@@ -12,13 +12,15 @@ export default Component.extend({
 
   /**
    * Closes the details element by setting its `open` attribute to `false`.
-   * While the details element handles open/close functionality without
-   * JavaScript, we include this helper action to ensure that when the user
-   * clicks _outside_ of the element, it still closes.
+   * While the details element handles open/close functionality when clicking
+   * directly on the summar elemenet without JavaScript, we include this helper
+   * action to ensure that when the user clicks _outside_ of the element,
+   * or _inside_ the content, it still closes.
    * @param {HTMLElement} element
    */
   @action
   close(element) {
     if (element.open) element.open = false;
+    if (element.parentElement.open) element.parentElement.open = false;
   },
 });
diff --git a/addons/rose/addon/modifiers/on-click-inside.js b/addons/rose/addon/modifiers/on-click-inside.js
new file mode 100644
index 000000000..ec64ff5f7
--- /dev/null
+++ b/addons/rose/addon/modifiers/on-click-inside.js
@@ -0,0 +1,20 @@
+import { modifier } from 'ember-modifier';
+
+/**
+ * Used to detect clicks occuring _inside_ the modified element.
+ * This is useful especially for dropdowns to toggle content visibility
+ * when the user clicks an item.
+ */
+export default modifier((element, [callback]) => {
+  function handleClick(event) {
+    if (element.contains(event.target)) {
+      callback(element, event);
+    }
+  }
+
+  element.addEventListener('click', handleClick, false);
+
+  return () => {
+    element.removeEventListener('click', handleClick, false);
+  };
+});
diff --git a/addons/rose/addon/templates/components/rose/dropdown.hbs b/addons/rose/addon/templates/components/rose/dropdown.hbs
index 51b429435..c65c640ba 100644
--- a/addons/rose/addon/templates/components/rose/dropdown.hbs
+++ b/addons/rose/addon/templates/components/rose/dropdown.hbs
@@ -22,7 +22,7 @@
 
   </summary>
 
-  <div class="rose-dropdown-content">
+  <div class="rose-dropdown-content" {{on-click-inside this.close}}>
     {{yield (hash
       link=(component "link-to" class="rose-dropdown-link")
       button=(component "rose/button" style="dropdown")
diff --git a/addons/rose/app/modifiers/on-click-inside.js b/addons/rose/app/modifiers/on-click-inside.js
new file mode 100644
index 000000000..c137452fe
--- /dev/null
+++ b/addons/rose/app/modifiers/on-click-inside.js
@@ -0,0 +1 @@
+export { default } from 'rose/modifiers/on-click-inside';
diff --git a/addons/rose/tests/integration/components/rose/dropdown-test.js b/addons/rose/tests/integration/components/rose/dropdown-test.js
index 4d9ce49d0..3d4597c95 100644
--- a/addons/rose/tests/integration/components/rose/dropdown-test.js
+++ b/addons/rose/tests/integration/components/rose/dropdown-test.js
@@ -67,4 +67,17 @@ module('Integration | Component | rose/dropdown', function (hooks) {
     await click('#wrapper');
     assert.notOk(find('#dropdown').open);
   });
+
+  test('it is closed when inside content is clicked', async function (assert) {
+    await render(hbs`
+      <Rose::Dropdown as |dropdown|>
+        <dropdown.button>Button</dropdown.button>
+      </Rose::Dropdown>
+    `);
+
+    await click('summary');
+    assert.ok(find('.rose-dropdown').open);
+    await click('button');
+    assert.notOk(find('.rose-dropdown').open);
+  });
 });
diff --git a/addons/rose/tests/integration/modifiers/on-click-inside-test.js b/addons/rose/tests/integration/modifiers/on-click-inside-test.js
new file mode 100644
index 000000000..8197a2258
--- /dev/null
+++ b/addons/rose/tests/integration/modifiers/on-click-inside-test.js
@@ -0,0 +1,37 @@
+import { module, test } from 'qunit';
+import { setupRenderingTest } from 'ember-qunit';
+import { render, click } from '@ember/test-helpers';
+import hbs from 'htmlbars-inline-precompile';
+
+module('Integration | Modifier | on-click-inside', function (hooks) {
+  setupRenderingTest(hooks);
+
+  test('it fires event when inside is clicked', async function (assert) {
+    assert.expect(2);
+    this.set('clickedInside', (element) => {
+      assert.ok(element);
+      assert.equal(element.id, 'inside');
+    });
+    await render(hbs`
+      <div id="outside"></div>
+      <div id="inside" {{on-click-inside this.clickedInside}}>
+        <div id="item" />
+      </div>
+    `);
+    await click('#item');
+  });
+
+  test('it does not fire event when outside is clicked', async function (assert) {
+    assert.expect(0);
+    this.set('clickedInside', () => {
+      assert.ok(true);
+    });
+    await render(hbs`
+      <div id="outside"></div>
+      <div id="inside" {{on-click-inside this.clickedInside}}>
+        <div id="item" />
+      </div>
+    `);
+    await click('#outside');
+  });
+});