diff --git a/examples/angular/src/BUILD.bazel b/examples/angular/src/BUILD.bazel
index 817b35d40f..fcc82bfc9e 100644
--- a/examples/angular/src/BUILD.bazel
+++ b/examples/angular/src/BUILD.bazel
@@ -1,3 +1,4 @@
+load("@build_bazel_rules_nodejs//:index.bzl", "pkg_web")
 load("@io_bazel_rules_docker//container:container.bzl", "container_image")
 load("@io_bazel_rules_docker//nodejs:image.bzl", "nodejs_image")
 load("@io_bazel_rules_sass//:defs.bzl", "sass_binary")
@@ -8,7 +9,6 @@ load("@npm_bazel_inject_html//:index.bzl", "inject_html")
 load("@npm_bazel_rollup//:index.bzl", "rollup_bundle")
 load("@npm_bazel_terser//:index.bzl", "terser_minified")
 load("@npm_bazel_typescript//:index.bzl", "ts_config", "ts_devserver", "ts_library")
-load("@build_bazel_rules_nodejs//index.bzl", "pkg_web")
 
 package(default_visibility = ["//:__subpackages__"])
 
@@ -166,8 +166,10 @@ terser_minified(
 inject_html(
     name = "inject_scripts_for_prod",
     src = "//src:example/index.prod.html",
-    # we can't produce "example/index.html" since that collides with the devmode file
-    # pkg_web rule will re-root this path because it starts with _prodapp
+    # we can't output "src/example/index.html" since that collides with the devmode file.
+    # pkg_web rule will re-root paths that start with _{name} by default
+    # so we output "_prodapp/src/example/index.html" so that it is mapped to
+    # `example/index.html` in the web package.
     out = "_prodapp/src/example/index.html",
     assets = _ASSETS,
 )
diff --git a/examples/app/BUILD.bazel b/examples/app/BUILD.bazel
index 76dd0214bb..91d1d0b662 100644
--- a/examples/app/BUILD.bazel
+++ b/examples/app/BUILD.bazel
@@ -37,15 +37,16 @@ _ASSETS = [
     "//styles:test.css",
 ]
 
+# Copy index.html to the output folder, adding <script> and <link> tags
 inject_html(
-    name = "inject_js_css_tags",
+    name = "inject_tags",
     src = "index.html",
     assets = _ASSETS,
 )
 
 pkg_web(
     name = "package",
-    srcs = [":inject_js_css_tags"] + _ASSETS,
+    srcs = [":inject_tags"] + _ASSETS,
 )
 
 http_server(
diff --git a/examples/webapp/differential_loading.bzl b/examples/webapp/differential_loading.bzl
index e7f1a5af83..95b9036567 100644
--- a/examples/webapp/differential_loading.bzl
+++ b/examples/webapp/differential_loading.bzl
@@ -57,7 +57,6 @@ def differential_loading(name, entry_point, srcs):
         name = name,
         srcs = [
             "index.html",
-            "styles.css",
             "favicon.png",
             name + "_chunks.min",
             name + "_chunks_es5.min",
diff --git a/examples/webapp/styles.css b/examples/webapp/styles.css
deleted file mode 100644
index d521f669b0..0000000000
--- a/examples/webapp/styles.css
+++ /dev/null
@@ -1 +0,0 @@
-h1 { color: red};
diff --git a/packages/inject-html/BUILD.bazel b/packages/inject-html/BUILD.bazel
index 1ab283aab3..4bfc0b59f8 100644
--- a/packages/inject-html/BUILD.bazel
+++ b/packages/inject-html/BUILD.bazel
@@ -1,5 +1,7 @@
 load("@build_bazel_rules_nodejs//:index.bzl", "nodejs_binary", "npm_package")
-load("@npm_bazel_jasmine//:index.from_src.bzl", "jasmine_node_test")
+
+# For unit test
+exports_files(["index.js"])
 
 # For local testing without an npm install
 nodejs_binary(
@@ -10,15 +12,6 @@ nodejs_binary(
     visibility = ["//packages/inject-html:__subpackages__"],
 )
 
-jasmine_node_test(
-    name = "test",
-    srcs = ["spec.js"],
-    deps = [
-        ":index.js",
-        "@npm//parse5",
-    ],
-)
-
 npm_package(
     name = "npm_package",
     srcs = [
diff --git a/packages/inject-html/test/BUILD.bazel b/packages/inject-html/test/BUILD.bazel
index c8a271205e..698bcecc3e 100644
--- a/packages/inject-html/test/BUILD.bazel
+++ b/packages/inject-html/test/BUILD.bazel
@@ -1,3 +1,4 @@
+load("@npm_bazel_jasmine//:index.from_src.bzl", "jasmine_node_test")
 load("//internal/golden_file_test:golden_file_test.bzl", "golden_file_test")
 load("//packages/inject-html:inject_html.bzl", "inject_html")
 
@@ -34,3 +35,12 @@ golden_file_test(
     # Sed script doesn't work on Mac :shrug:
     tags = ["no-bazelci-mac"],
 )
+
+jasmine_node_test(
+    name = "unit_test",
+    srcs = ["spec.js"],
+    deps = [
+        "//packages/inject-html:index.js",
+        "@npm//parse5",
+    ],
+)
diff --git a/packages/inject-html/spec.js b/packages/inject-html/test/spec.js
similarity index 98%
rename from packages/inject-html/spec.js
rename to packages/inject-html/test/spec.js
index b1c501f9fe..392e8f059c 100644
--- a/packages/inject-html/spec.js
+++ b/packages/inject-html/test/spec.js
@@ -1,4 +1,4 @@
-const injector = require('./');
+const injector = require('..');
 
 describe('HTML injector', () => {
   const inFile = 'some/index.html';