diff --git a/.prettierignore b/.prettierignore
index eb4cdc15c..d3d3b0561 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -17,4 +17,6 @@ packages/ui-mobile-base
 *.md
 *.json
 *.js
-*.map
\ No newline at end of file
+*.map
+*.css
+*.scss
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 7c76b51f5..04b9e596f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,16 +2,9 @@ language: node_js
 node_js:
   - "node"
 script:
-- npm install
-- npm run format-check
 - npm run setup
-- npm run unit-test
+- nx run core:unit
+- nx run core:build.npm
 
 # public API changes check
 # - npm run api-extractor-ci
-
-# circular references check
-- cd tests && npm i
-- node_modules/.bin/webpack --env.android
-- node_modules/.bin/webpack --env.ios
-
diff --git a/packages/core/__tests__/unit/css/assets/core.light.css b/packages/core/__tests__/unit/css/assets/core.light.css
index c07bf2b48..777c15a6f 100644
--- a/packages/core/__tests__/unit/css/assets/core.light.css
+++ b/packages/core/__tests__/unit/css/assets/core.light.css
@@ -3,1273 +3,4 @@
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0}.go-back{font-size:14;text-align:center;color:#212121;margin-top:10}.btn{border-width:0;font-family:'SF UI Text Medium';font-size:15}.btn-outline{border-width:1}.btn-rounded-sm{border-radius:4}.btn-rounded-lg{border-radius:19}.form{font-family:'SF UI Text Regular'}.form .input{font-size:15}.form .input.input-rounded{border-radius:27}.h1{font-size:32}.slider{margin:10 15}.sidedrawer-list-item-icon,.sidedrawer-list-item{color:#949494}.switch{margin:8 15}.list-group .list-group-item{padding:16 15 16 15}.list-group .list-group-item .thumb{margin-right:15}.list-group .list-group-item .list-group-item-heading{margin-bottom:5}.segmented-bar{margin:0 15;color:#30bcff}
diff --git a/packages/core/__tests__/unit/css/assets/what-is-new.ios.css b/packages/core/__tests__/unit/css/assets/what-is-new.ios.css
index 97cab6c67..a20e0940a 100644
--- a/packages/core/__tests__/unit/css/assets/what-is-new.ios.css
+++ b/packages/core/__tests__/unit/css/assets/what-is-new.ios.css
@@ -1,23 +1,23 @@
 @import url('~/views/what-is-new-common.css');
 
 .news-card {
-	margin: 12 12 0 12;
+    margin: 12 12 0 12;
 }
 
 .title {
-	font-size: 14;
+    font-size: 14;
 }
 .body {
-	font-size: 14;
+    font-size: 14;
 }
 .learn-more {
-	font-size: 14;
+    font-size: 14;
 }
 .date {
-	font-size: 12;
+    font-size: 12;
 }
 
 .empty-placeholder {
-	vertical-align: center;
-	text-align: center;
-}
+    vertical-align: center;
+    text-align: center;
+}
\ No newline at end of file