diff --git a/angular.json b/angular.json
index 62c257b..55d1dff 100644
--- a/angular.json
+++ b/angular.json
@@ -80,34 +80,20 @@
         "test": {
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
-            "main": "src/test.ts",
             "polyfills": [
               "zone.js",
               "zone.js/testing"
             ],
             "tsConfig": "tsconfig.spec.json",
-            "karmaConfig": "karma.conf.js",
+            "inlineStyleLanguage": "scss",
             "assets": [
               "src/favicon.ico",
               "src/assets"
             ],
             "styles": [
-              "src/styles.css"
             ],
             "scripts": []
           }
-        },
-        "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
-          "options": {
-            "tsConfig": [
-              "tsconfig.app.json",
-              "tsconfig.spec.json"
-            ],
-            "exclude": [
-              "**/node_modules/**"
-            ]
-          }
         }
       }
     }
diff --git a/browserslist b/browserslist
deleted file mode 100644
index 8084853..0000000
--- a/browserslist
+++ /dev/null
@@ -1,12 +0,0 @@
-# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
-# For additional information regarding the format and rule options, please see:
-# https://github.com/browserslist/browserslist#queries
-
-# You can see what browsers were selected by your queries by running:
-#   npx browserslist
-
-> 0.5%
-last 2 versions
-Firefox ESR
-not dead
-not IE 9-11 # For IE 9-11 support, remove 'not'.
\ No newline at end of file
diff --git a/karma.conf.js b/karma.conf.js
deleted file mode 100644
index f481244..0000000
--- a/karma.conf.js
+++ /dev/null
@@ -1,37 +0,0 @@
-// Karma configuration file, see link for more information
-// https://karma-runner.github.io/1.0/config/configuration-file.html
-
-module.exports = function(config) {
-  config.set({
-    basePath: '',
-    frameworks: ['jasmine', '@angular-devkit/build-angular'],
-    plugins: [
-      require('karma-jasmine'),
-      require('karma-chrome-launcher'),
-      require('karma-jasmine-html-reporter'),
-      require('karma-coverage-istanbul-reporter'),
-      require('@angular-devkit/build-angular/plugins/karma'),
-    ],
-    client: {
-      clearContext: false, // leave Jasmine Spec Runner output visible in browser
-    },
-    coverageIstanbulReporter: {
-      dir: require('path').join(__dirname, '../coverage'),
-      reports: ['html', 'lcovonly'],
-      fixWebpackSourcePaths: true,
-    },
-    reporters: ['progress', 'kjhtml'],
-    port: 9876,
-    colors: true,
-    logLevel: config.LOG_INFO,
-    autoWatch: true,
-    browsers: ['Chrome', 'ChromeHeadless', 'ChromeHeadlessDebug'],
-    customLaunchers: {
-      ChromeHeadlessDebug: {
-        base: 'ChromeHeadless',
-        flags: ['--remote-debugging-port=9333', '--no-sandbox'],
-      },
-    },
-    singleRun: false,
-  });
-};
diff --git a/package.json b/package.json
index 2bcf5ac..ed97359 100644
--- a/package.json
+++ b/package.json
@@ -4,11 +4,10 @@
   "scripts": {
     "ng": "./node_modules/.bin/ng",
     "start": "node node_modules/@angular/cli/bin/ng serve",
-    "build": "node node_modules/@angular/cli/bin/ng build --aot --configuration production",
+    "build": "node node_modules/@angular/cli/bin/ng build --configuration production",
     "test": "node node_modules/@angular/cli/bin/ng test",
-    "test:headless": "node node_modules/@angular/cli/bin/ng test --browsers=ChromeHeadlessDebug",
-    "test:headless:singleRun": "node node_modules/@angular/cli/bin/ng test --browsers=ChromeHeadlessDebug --watch false",
-    "lint": "node node_modules/@angular/cli/bin/ng lint",
+    "test:headless": "node node_modules/@angular/cli/bin/ng test --browsers=ChromeHeadless",
+    "test:headless:singleRun": "node node_modules/@angular/cli/bin/ng test --no-watch --no-progress --browsers=ChromeHeadless",
     "release:minor": "cd ./src/lib/ && npm version minor",
     "release:major": "cd ./src/lib/ && npm version major",
     "release:patch": "cd ./src/lib/ && npm version patch",
diff --git a/src/lib/directives/specs/ng2-fittext.directive.spec.ts b/src/lib/directives/specs/ng2-fittext.directive.spec.ts
index f1f26ba..80f824b 100644
--- a/src/lib/directives/specs/ng2-fittext.directive.spec.ts
+++ b/src/lib/directives/specs/ng2-fittext.directive.spec.ts
@@ -297,7 +297,9 @@ describe('Class: Ng2FittextDirective', () => {
     });
 
     it('Should calculate the overflow using the parent element if the container is not present', () => {
-      delete ng2FittextDirective.container;
+      if(ng2FittextDirective) {
+        delete (ng2FittextDirective as any).container;
+      }
       spyOn(ng2FittextDirective, 'checkOverflow').and.callFake(
         (parentElement: any, childrenElement: any) => {
           expect(parentElement).toEqual(parentElementMock);
diff --git a/tslint.json b/tslint.json
deleted file mode 100644
index afa75e6..0000000
--- a/tslint.json
+++ /dev/null
@@ -1,91 +0,0 @@
-{
-    "extends": "tslint:recommended",
-    "rules": {
-        "array-type": false,
-        "arrow-parens": false,
-        "deprecation": {
-            "severity": "warning"
-        },
-        "component-class-suffix": true,
-        "contextual-lifecycle": true,
-        "directive-class-suffix": true,
-        "directive-selector": [
-            true,
-            "attribute",
-            "app",
-            "camelCase"
-        ],
-        "component-selector": [
-            true,
-            "element",
-            "app",
-            "kebab-case"
-        ],
-        "import-blacklist": [
-            true,
-            "rxjs/Rx"
-        ],
-        "interface-name": false,
-        "max-classes-per-file": false,
-        "max-line-length": [
-            true,
-            140
-        ],
-        "member-access": false,
-        "member-ordering": [
-            true,
-            {
-                "order": [
-                    "static-field",
-                    "instance-field",
-                    "static-method",
-                    "instance-method"
-                ]
-            }
-        ],
-        "no-consecutive-blank-lines": false,
-        "no-console": [
-            true,
-            "debug",
-            "info",
-            "time",
-            "timeEnd",
-            "trace"
-        ],
-        "no-empty": false,
-        "no-inferrable-types": [
-            true,
-            "ignore-params"
-        ],
-        "no-non-null-assertion": true,
-        "no-redundant-jsdoc": true,
-        "no-switch-case-fall-through": true,
-        "no-var-requires": false,
-        "object-literal-key-quotes": [
-            true,
-            "as-needed"
-        ],
-        "object-literal-sort-keys": false,
-        "ordered-imports": false,
-        "quotemark": [
-            true,
-            "single"
-        ],
-        "trailing-comma": false,
-        "no-conflicting-lifecycle": true,
-        "no-host-metadata-property": true,
-        "no-input-rename": true,
-        "no-inputs-metadata-property": true,
-        "no-output-native": true,
-        "no-output-on-prefix": true,
-        "no-output-rename": true,
-        "no-outputs-metadata-property": true,
-        "template-banana-in-box": true,
-        "template-no-negated-async": true,
-        "use-lifecycle-interface": true,
-        "use-pipe-transform-interface": true
-    },
-    "rulesDirectory": [
-        "codelyzer"
-    ]
-}