diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e631f61c5..f9cc93cdd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,6 +26,8 @@ jobs:
             ${{ runner.OS }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
             ${{ runner.OS }}-node-v${{ env.NODE }}-
 
+      - run: java -version
+
       - name: Install npm dependencies
         run: npm ci
 
diff --git a/Gruntfile.js b/Gruntfile.js
index 8b5f4ea7a..1c5109aea 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -51,6 +51,7 @@ module.exports = grunt => {
   grunt.loadNpmTasks('grunt-contrib-cssmin');
   grunt.loadNpmTasks('grunt-contrib-watch');
   grunt.loadNpmTasks('grunt-sass');
+  grunt.loadNpmTasks('grunt-html');
 
   // Force use of Unix newlines
   grunt.util.linefeed = '\n';
@@ -148,6 +149,21 @@ module.exports = grunt => {
         dest: ''
       }
     },
+    htmllint: {
+      options: {
+        ignore: [
+          /Attribute “autocomplete” is only allowed when the input type is.*/,
+          /Attribute “autocomplete” not allowed on element “button” at this point./,
+          /Bad value “” for attribute “action” on element “form”./
+        ]
+      },
+      src: [
+        'docs/**/*.html',
+        '!docs/**/bower_components/**/*.html',
+        '!docs/_vendor/**/*.html',
+        '!docs/2/**/*.html'
+      ]
+    },
     connect: {
       options: {
         hostname: 'localhost',
@@ -238,6 +254,7 @@ module.exports = grunt => {
   });
 
   grunt.registerTask('vendor', 'copy:vendor');
+
   grunt.registerTask('docs-css', ['sass:docs', 'postcss:docs']);
 
   grunt.registerTask('server', 'connect:keepalive');
diff --git a/package-lock.json b/package-lock.json
index 6e7c01a2e..1f6ab977e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2308,6 +2308,75 @@
         }
       }
     },
+    "grunt-html": {
+      "version": "14.2.0",
+      "resolved": "https://registry.npmjs.org/grunt-html/-/grunt-html-14.2.0.tgz",
+      "integrity": "sha512-Ir4n4axiY/FHrv9v1XhfaehSrRqZ1PYTRDaTIY5VxeaIsAm4KlYjr+hyrq+gwqyaD/iiWznOBE22c6U5si5WEQ==",
+      "dev": true,
+      "requires": {
+        "async": "^3.2.0",
+        "chalk": "^4.1.0",
+        "vnu-jar": "20.6.30"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "4.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
+          "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
+          "dev": true,
+          "requires": {
+            "@types/color-name": "^1.1.1",
+            "color-convert": "^2.0.1"
+          }
+        },
+        "async": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/async/-/async-3.2.0.tgz",
+          "integrity": "sha512-TR2mEZFVOj2pLStYxLht7TyfuRzaydfpxr3k9RpHIzMgw7A64dzsdqCxH1WJyQdoe8T10nDXd9wnEigmiuHIZw==",
+          "dev": true
+        },
+        "chalk": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        }
+      }
+    },
     "grunt-known-options": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/grunt-known-options/-/grunt-known-options-1.1.1.tgz",
@@ -6112,6 +6181,12 @@
         "unist-util-stringify-position": "^2.0.0"
       }
     },
+    "vnu-jar": {
+      "version": "20.6.30",
+      "resolved": "https://registry.npmjs.org/vnu-jar/-/vnu-jar-20.6.30.tgz",
+      "integrity": "sha512-zlNNe7jW6cTIrxVlZK9AcZiNWjxzjqi7LpTafBCi4OY4bsh2uyGhxXT2l6hZ3ibpxP0ZC/pQsBpFQEACS0ePIg==",
+      "dev": true
+    },
     "websocket-driver": {
       "version": "0.7.4",
       "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.4.tgz",
diff --git a/package.json b/package.json
index d4d446da1..cbce46eb6 100644
--- a/package.json
+++ b/package.json
@@ -14,8 +14,9 @@
   },
   "scripts": {
     "build": "grunt swatch",
+    "htmllint": "grunt htmllint",
     "stylelint": "stylelint \"{build,dist,docs/_assets}/**/*.scss\" --rd",
-    "test": "npm run stylelint"
+    "test": "npm run stylelint && npm run htmllint"
   },
   "files": [
     "dist/**/*.{css,scss}"
@@ -33,6 +34,7 @@
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-cssmin": "^3.0.0",
     "grunt-contrib-watch": "^1.1.0",
+    "grunt-html": "^14.2.0",
     "grunt-sass": "^3.1.0",
     "jquery": "^3.5.1",
     "node-sass": "^4.14.1",